LT1630IS8_技术文档

LT1630/LT1631

30MHz, 10V/µs, Dual/Quad

Rail-to-Rail Input and Output

Precision Op Amps

FeaTures

DescripTion

The LT^®1630/LT1631 are dual/quad, rail-to-rail input and

output op amps with a 30MHz gain-bandwidth product

and a 10V/µs slew rate.

n

Gain-Bandwidth Product: 30MHz

n

Slew Rate: 10V/µs

n

Low Supply Current per Ampliﬁer: 3.5mA

n

Input Common Mode Range Includes Both Rails

The LT1630/LT1631 have excellent DC precision over the

full range of operation. Input offset voltage is typically

less than 150µV and the minimum open-loop gain of one

million into a 10k load virtually eliminates all gain error.

Tomaximizecommonmoderejection, theLT1630/LT1631

employ a patented trim technique for both input stages,

one at the negative supply and the other at the positive

supply, that gives a typical CMRR of 106dB over the full

input range.

n

Output Swings Rail-to-Rail

n

Input Offset Voltage, Rail-to-Rail: 525µV Max

n

Input Offset Current: 150nA Max

n

Input Bias Current: 1000nA Max

n

Open-Loop Gain: 1000V/mV Min

n

Low Input Noise Voltage: 6nV/√Hz Typ

n

Low Distortion: –91dBc at 100kHz

n

Wide Supply Range: 2.7V to 15V

n

Large Output Drive Current: 35mA Min

n

TheLT1630/LT1631maintaintheirperformanceforsupplies

from 2.7V to 36V and are speciﬁed at 3V, 5V and 15V

supplies. The inputs can be driven beyond the supplies

withoutdamageorphasereversaloftheoutput.Theoutput

delivers load currents in excess of 35mA.

Dual in 8-Pin PDIP and SO Packages

n

Quad in Narrow 14-Pin SO Package

applicaTions

n

Active Filters

The LT1630 is available in 8-pin PDIP and SO packages

withthestandarddualopamppinout.TheLT1631features

the standard quad op amp conﬁguration and is available

in a 14-pin plastic SO package. These devices can be used

as plug-in replacements for many standard op amps to

improve input/output range and performance.

n

Rail-to-Rail Buffer Ampliﬁers

n

Driving A/D Converters

n

Low Voltage Signal Processing

n

Battery-Powered Systems

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load

is a trademark of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

Typical applicaTion

Frequency Response

10

0

Single Supply, 400kHz, 4th Order Butterworth Filter

–10

–20

–30

–40

–50

47pF

2.32k

6.65k

2.32k

22pF

2.74k

5.62k

–

V

IN

2.74k

–

220pF

1/2 LT1630

+

470pF

V

1/2 LT1630

+

–60

–70

–80

–90

OUT

V

= 3V, 0V

V /2

S

1630/31 TA01

= 2.5V

IN

P-P

0.1k

1k

10k

100k

1M

10M

FREQUENCY (Hz)

1630/31 TA02

16301fa

ꢀ

LT1630/LT1631

absoluTe MaxiMuM raTings ^{(Note 1)}

Total Supply Voltage (V+ to V–) ............................... 36V

Input Current....................................................... 10mA

Output Short-Circuit Duration (Note 2)........ Continuous

Operating Temperature Range

Speciﬁed Temperature Range (Note 4) ..........................

C-Grade/I-Grade ................................. –40°C to 85°C

H-Grade............................................. –40°C to 125°C

Junction Temperature ......................................... 150°C

Storage Temperature Range .................. –65°C to 150°C

Lead Temperature (Soldering, 10 sec)...................300°C

C-Grade/I-Grade ................................. –40°C to 85°C

H-Grade............................................. –40°C to 125°C

pin conFiguraTion

TOP VIEW

+

OUTA

–IN A

+IN A

1

2

3

4

5

6

7

14

13

12

11

10

9

OUT D

–IN D

+IN D

OUT A

–IN A

+IN A

1

2

3

4

V

8

7

6

5

A

B

D

C

OUT B

–IN B

+IN B

A

+

–

V

B

+IN B

–IN B

–

+IN C

–IN C

OUT C

V

N8 PACKAGE

S8 PACKAGE

OUT B

8

8-LEAD PDIP 8-LEAD PLASTIC SO

T

= 150°C, θ = 130°C/W (N8)

JA

= 150°C, θ = 190°C/W (S8)

JA

JMAX

S PACKAGE

14-LEAD PLASTIC SO

T

JMAX

T

JMAX

= 150°C, θ = 150°C/W

JA

orDer inForMaTion

LEAD FREE FINISH

LT1630CN8#PBF

LT1630CS8#PBF

LT1630IN8#PBF

LT1630IS8#PBF

LT1630HS8#PBF

LT1631CS#PBF

LT1631IS#PBF

TAPE AND REEL

PART MARKING

LT1630CN8

1630

PACKAGE DESCRIPTION

8-Lead PDIP

TEMPERATURE RANGE

–40°C to 85°C

–40°C to 125°C

–40°C to 85°C

LT1630CN8#TRPBF

LT1630CS8#TRPBF

LT1630IN8#TRPBF

LT1630IS8#TRPBF

LT1630HS8#TRPBF

LT1631CS#TRPBF

LT1631IS#TRPBF

8-Lead Plastic SO

8-Lead PDIP

LT1630IN8

1630I

8-Lead Plastic SO

14-Lead Plastic SO

1630H

LT1631CS

LT1631IS

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges.

Consult LTC Marketing for information on non-standard lead based ﬁnish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speciﬁcations, go to: http://www.linear.com/tapeandreel/

16301fa

ꢁ

LT1630/LT1631

elecTrical characTerisTics ^T_A^{= 25°C, V}_S^{= 5V, 0V; V}_S^{= 3V, 0V; V}_CM= V_OUT= half supply, unless

otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

V

Input Offset Voltage

V

CM

V

CM

= V

150

525

µV

OS

–

+

Input Offset Shift

V

= V to V

150

200

525

950

µV

∆V

CM

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V , V (Note 5)

+

I

V

CM

V

CM

= V

0

540

–540

1000

0

nA

B

–

= V

–1000

–

+

Input Bias Current Shift

V

CM

= V to V

1080

2000

nA

∆I

B

+

–

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V (Note 5)

25

300

nA

= V (Note 5)

+

–

I

OS

Input Offset Current

V

CM

V

CM

= V

20

150

nA

–

+

Input Offset Current Shift

Input Noise Voltage

V

= V to V

40

300

6

300

nA

∆I

CM

OS

0.1Hz to 10Hz

f = 1kHz

nV

P-P

e

n

Input Noise Voltage Density

Input Noise Current Density

Input Capacitance

nV/√Hz

pA/√Hz

pF

i

n

f = 1kHz

0.9

5

C

IN

A

VOL

Large-Signal Voltage Gain

V = 5V, V = 300mV to 4.7V, R = 10k

500

400

3500

2000

V/mV

S

O

L

V = 3V, V = 300mV to 2.7V, R = 10k

S

O

L

–

+

CMRR

Common Mode Rejection Ratio

V = 5V, V = V to V

79

75

90

86

dB

S

CM

V = 3V, V = V to V

S

CM

–

+

CMRR Match (Channel-to-Channel) (Note 5)

V = 5V, V = V to V

72

67

96

88

dB

S

CM

V = 3V, V = V to V

S

CM

PSRR

Power Supply Rejection Ratio

V = 2.7V to 12V, V = V = 0.5V

87

80

105

107

2.6

dB

V

S

CM

O

PSRR Match (Channel-to-Channel) (Note 5)

Minimum Supply Voltage (Note 9)

Output Voltage Swing Low (Note 6)

V = 2.7V to 12V, V = V = 0.5V

S

CM

O

V

= V = 0.5V

2.7

CM

O

V

No Load

14

31

600

500

30

60

1200

1000

mV

OL

OH

I

= 0.5mA

SINK

= 25mA, V = 5V

S

= 20mA, V = 3V

S

V

Output Voltage Swing High (Note 6)

No Load

15

42

900

680

40

80

1800

1400

mV

I

= 0.5mA

SOURCE

= 20mA, V = 5V

= 15mA, V = 3V

S

I

Short-Circuit Current

V = 5V

S

20

15

41

30

mA

SC

S

V = 3V

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate (Note 8)

3.5

30

4.4

mA

S

GBW

SR

f = 100kHz

V = 5V, A = –1, R = Open, V = 4V

15

MHz

4.6

4.2

9.2

8.5

V/µs

S

V

L

O

V = 3V, A = –1, R = Open

S

t

S

Settling Time

V = 5V, A = 1, R = 1k, 0.01%, V = 2V

STEP

520

ns

S

V

L

16301fa

ꢂ

LT1630/LT1631

elecTrical characTerisTics ^Thel denotes the speciﬁcations which apply over the full operating

temperature range of 0°C < T_A< 70°C. V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

l

V

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

175

700

µV

OS

= V + 0.2V

l

V

TC

Input Offset Voltage Drift (Note 3)

2.5

1

5.5

3.5

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

l

Input Offset Voltage Shift

= V + 0.2V to V – 0.1V

175

200

750

µV

∆V

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V + 0.2V, V – 0.1V (Note 5)

1200

+

l

I

V

CM

V

CM

= V – 0.1V

0

585

–585

1100

0

nA

B

–

= V + 0.2V

–1100

–

+

l

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

1170

2200

nA

∆I

B

+

–

l

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

25

340

nA

= V + 0.2V (Note 5)

+

–

l

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

20

170

nA

OS

= V + 0.2V

–

+

l

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

40

340

nA

∆I

CM

OS

l

A

VOL

V = 5V, V = 300mV to 4.7V, R = 10k

V = 3V, V = 300mV to 2.7V, R = 10k

450

350

3500

2000

V/mV

S

O

L

–

+

l

CMRR

Common Mode Rejection Ratio

V = 5V, V = V + 0.2V to V – 0.1V

75

71

89

83

dB

S

CM

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

–

+

l

CMRR Match (Channel-to-Channel) (Note 5)

V = 5V, V = V + 0.2V to V – 0.1V

70

65

90

85

dB

S

CM

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

l

PSRR

Power Supply Rejection Ratio

V = 3V to 12V, V = V = 0.5V

82

78

101

102

2.6

dB

V

S

CM

O

PSRR Match (Channel-to-Channel) (Note 5)

Minimum Supply Voltage (Note 9)

Output Voltage Swing Low (Note 6)

V = 3V to 12V, V = V = 0.5V

S

CM

O

V

= V = 0.5V

2.7

CM

O

l

V

No Load

17

36

700

560

40

80

1400

1200

mV

OL

OH

I

= 0.5mA

SINK

= 25mA, V = 5V

S

= 20mA, V = 3V

S

l

Output Voltage Swing High (Note 6)

No Load

16

50

820

550

40

100

1600

1100

mV

I

= 0.5mA

SOURCE

= 15mA, V = 5V

= 10mA, V = 3V

S

l

I

Short-Circuit Current

V = 5V

S

18

13

36

25

mA

SC

S

V = 3V

l

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate (Note 8)

4.0

28

5.1

mA

S

GBW

SR

f = 100kHz

V = 5V, A = –1, R = Open, V = 4V

14

MHz

l

4.2

3.9

8.3

7.7

V/µs

S

V

L

O

V = 3V, A = –1, R = Open

S

16301fa

ꢃ

LT1630/LT1631

elecTrical characTerisTics ^Thel denotes the speciﬁcations which apply over the full operating

temperature range of –40°C < T_A< 85°C. V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

l

V

OS

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

250

775

µV

= V + 0.2V

l

V

TC

Input Offset Voltage Drift (Note 3)

2.5

1

5.5

3.5

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

l

Input Offset Voltage Shift

= V + 0.2V to V – 0.1V

200

210

750

µV

∆V

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V + 0.2V, V (Note 5)

1500

+

l

I

V

CM

V

CM

= V – 0.1V

0

650

–650

1300

0

nA

B

–

= V + 0.2V

–1300

–

+

l

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

1300

2600

nA

∆I

B

+

–

l

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

25

390

nA

= V + 0.2V (Note 5)

+

–

l

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

25

195

nA

OS

= V + 0.2V

–

+

l

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

50

390

nA

∆I

CM

OS

l

A

VOL

V = 5V, V = 300mV to 4.7V, R = 10k

V = 3V, V = 300mV to 2.7V, R = 10k

400

300

3500

1800

V/mV

S

O

L

–

+

l

CMRR

Common Mode Rejection Ratio

V = 5V, V = V + 0.2V to V – 0.1V

75

71

87

83

dB

S

CM

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

–

+

l

CMRR Match (Channel-to-Channel) (Note 5)

V = 5V, V = V + 0.2V to V – 0.1V

69

65

89

85

dB

S

CM

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

l

PSRR

Power Supply Rejection Ratio

V = 3V to 12V, V = V = 0.5V

82

78

98

102

2.6

dB

V

S

CM

O

PSRR Match (Channel-to-Channel) (Note 5)

Minimum Supply Voltage (Note 9)

Output Voltage Swing Low (Note 6)

V = 3V to 12V, V = V = 0.5V

S

CM

O

V

= V = 0.5V

2.7

CM

O

l

V

No Load

18

38

730

580

40

80

1500

1200

mV

OL

OH

I

= 0.5mA

SINK

= 25mA, V = 5V

S

= 20mA, V = 3V

S

l

Output Voltage Swing High (Note 6)

No Load

15

55

860

580

40

110

1700

1200

mV

I

= 0.5mA

SOURCE

= 15mA, V = 5V

= 10mA, V = 3V

S

l

I

Short-Circuit Current

V = 5V

S

17

12

34

24

mA

SC

S

V = 3V

l

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate (Note 8)

4.1

28

5.2

mA

S

GBW

SR

f = 100kHz

V = 5V, A = –1, R = Open, V = 4V

14

MHz

l

3.5

3.3

7

6.5

V/µs

S

V

L

O

V = 3V, A = –1, R = Open

S

16301fa

ꢄ

LT1630/LT1631

elecTrical characTerisTics ^Thel denotes the speciﬁcations which apply over the full operating

temperature range of –40°C < T_A< 125°C. V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

l

V

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

345

950

µV

OS

= V + 0.2V

l

V

TC

Input Offset Voltage Drift (Note 3)

2.5

1

5.5

3.5

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

l

Input Offset Voltage Shift

= V + 0.2V to V – 0.1V

200

210

750

µV

∆V

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V + 0.2V, V (Note 5)

1500

+

l

I

V

CM

V

CM

= V – 0.1V

0

650

–650

1300

0

nA

B

–

= V + 0.2V

–1300

–

+

l

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

1300

2600

nA

∆I

B

+

–

l

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

25

390

nA

= V + 0.2V (Note 5)

+

–

l

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

25

195

nA

OS

= V + 0.2V

–

+

l

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

50

390

nA

∆I

CM

OS

l

A

VOL

V = 5V, V = 300mV to 4.7V, R = 10k

V = 3V, V = 300mV to 2.7V, R = 10k

200

150

3100

1625

V/mV

S

O

L

–

+

l

CMRR

Common Mode Rejection Ratio

V = 5V, V = V + 0.2V to V – 0.1V

72

69

87

83

dB

S

CM

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

–

+

l

CMRR Match (Channel-to-Channel) (Note 5)

V = 5V, V = V + 0.2V to V – 0.1V

67

63

89

85

dB

S

CM

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

l

PSRR

Power Supply Rejection Ratio

V = 3V to 12V, V = V = 0.5V

82

78

98

102

2.6

dB

V

S

CM

O

PSRR Match (Channel-to-Channel) (Note 5)

Minimum Supply Voltage (Note 9)

Output Voltage Swing Low (Note 6)

V = 3V to 12V, V = V = 0.5V

S

CM

O

V

= V = 0.5V

2.7

CM

O

l

V

No Load

18

38

730

580

40

100

1600

1300

mV

OL

OH

I

= 0.5mA

SINK

= 25mA, V = 5V

S

= 20mA, V = 3V

S

l

Output Voltage Swing High (Note 6)

No Load

15

55

860

580

40

120

1800

1300

mV

I

= 0.5mA

SOURCE

= 15mA, V = 5V

= 10mA, V = 3V

S

l

I

Short-Circuit Current

V = 5V

S

17

12

34

24

mA

SC

S

V = 3V

l

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate (Note 8)

4.1

28

5.6

mA

S

GBW

SR

f = 100kHz

V = 5V, A = –1, R = Open, V = 4V

13

MHz

l

3.5

3.3

7

6.5

V/µs

S

V

L

O

V = 3V, A = –1, R = Open

S

16301fa

ꢅ

LT1630/LT1631

elecTrical characTerisTics ^T_A^{= 25°C, V}_S^{= 15V, V}_CM= 0V, V_OUT= 0V, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

V

Input Offset Voltage

V

CM

V

CM

= V

220

1000

µV

OS

–

+

Input Offset Voltage Shift

V

= V to V

150

200

1000

1500

µV

∆V

CM

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V , V (Note 5)

+

I

V

CM

V

CM

= V

0

550

–550

1100

0

nA

B

–

= V

–1100

–

+

Input Bias Current Shift

V

CM

= V to V

1100

2200

nA

∆I

B

+

–

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V (Note 5)

20

300

nA

= V (Note 5)

+

–

I

OS

Input Offset Current

V

CM

V

CM

= V

20

150

nA

–

+

Input Offset Current Shift

Input Noise Voltage

V

CM

= V to V

40

300

6

300

nA

∆I

OS

0.1Hz to 10Hz

f = 1kHz

nV

P-P

e

n

Input Noise Voltage Density

Input Noise Current Density

Input Capacitance

nV/√Hz

pA/√Hz

pF

i

n

f = 1kHz

0.9

3

C

IN

f = 100kHz

A

VOL

Large-Signal Voltage Gain

V = –14.5V to 14.5V, R = 10k

1000

650

5000

3500

V/mV

O

L

V = –10V to 10V, R = 2k

O

L

Channel Separation

V = –10V to 10V, R = 2k

112

89

86

87

82

134

106

110

105

107

dB

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

CMRR Match (Channel-to-Channel) (Note 5)

Power Supply Rejection Ratio

V

= V to V

CM

–

+

= V to V

V = 5V to 15V

S

PSRR Match (Channel-to-Channel) (Note 5)

Output Voltage Swing Low (Note 6)

V = 5V to 15V

S

V

No Load

16

150

600

35

mV

OL

I

= 5mA

= 25mA

300

SINK

1200

Output Voltage Swing High (Note 6)

No Load

15

40

mV

OH

I

= 5mA

250

500

SINK

= 25mA

1200

2400

I

Short-Circuit Current

35

70

4.1

30

mA

SC

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate

5.0

S

GBW

SR

f = 100kHz

A = –1, R = Open, V = 10V,

15

5

MHz

V/µs

10

V

L

O

Measure at V = 5V

O

t

S

Settling Time

0.01%, V

= 10V, A = 1, R = 1k

1.2

µs

STEP

V

L

16301fa

ꢆ

LT1630/LT1631

elecTrical characTerisTics ^Theldenotes the speciﬁcations which apply over the full operating

temperature range of 0°C < T_A< 70°C. V_S= 15V, V_CM= 0V, V_OUT= 0V, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

l

V

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

300

1250

µV

OS

= V + 0.2V

l

V

TC

Input Offset Voltage Drift (Note 3)

4.5

1.5

7

4

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

l

Input Offset Voltage Shift

= V + 0.2V to V – 0.1V

180

300

1100

2000

µV

∆V

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V + 0.2V, V – 0.1V (Note 5)

+

l

I

V

CM

V

CM

= V – 0.1V

0

600

–600

1200

0

nA

B

–

= V + 0.2V

–1200

–

+

l

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

1200

2400

nA

∆I

B

+

–

l

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

30

350

nA

= V + 0.2V (Note 5)

+

–

l

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

25

175

nA

OS

= V + 0.2V

–

+

l

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

50

350

nA

∆I

CM

OS

l

A

VOL

V = –14.5V to 14.5V, R = 10k

V = –10V to 10V, R = 2k

900

600

6000

4000

V/mV

O

L

l

Channel Separation

V = –10V to 10V, R = 2k

112

88

84

86

80

132

104

100

104

dB

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

CMRR Match (Channel-to-Channel) (Note 5)

Power Supply Rejection Ratio

V

= V + 0.2V to V – 0.1V

CM

–

+

= V + 0.2V to V – 0.1V

V = 5V to 15V

S

PSRR Match (Channel-to-Channel) (Note 5)

Output Voltage Swing Low (Note 6)

V = 5V to 15V

S

l

V

No Load

19

175

670

45

mV

OL

OH

I

= 5mA

= 25mA

350

SINK

1400

l

Output Voltage Swing High (Note 6)

No Load

15

40

mV

I

= 5mA

300

600

SOURCE

= 25mA

1400

2800

l

I

Short-Circuit Current

28

57

4.6

28

9

mA

SC

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate

5.6

S

GBW

SR

f = 100kHz

A = –1, R = Open, V = 10V,

14

MHz

V/µs

4.5

V

L

O

Measured at V = 5V

O

16301fa

ꢇ

LT1630/LT1631

elecTrical characTerisTics ^Theldenotes the speciﬁcations which apply over the full operating

temperature range of –40°C < T_A< 85°C. V_S= 15V, V_CM= 0V, V_OUT= 0V, unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

l

V

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

350

1400

µV

OS

= V + 0.2V

l

V

TC

Input Offset Voltage Drift (Note 3)

4.5

1.5

7

4

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

l

Input Offset Voltage Shift

= V + 0.2V to V – 0.1V

180

350

1200

2200

µV

∆V

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V + 0.2V, V – 0.1V (Note 5)

+

l

I

V

CM

V

CM

= V – 0.1V

0

690

–690

1400

0

nA

B

–

= V + 0.2V

–1400

–

+

l

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

1380

2800

nA

∆I

B

+

–

l

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

30

420

nA

= V + 0.2V (Note 5)

+

–

l

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

30

210

nA

OS

= V + 0.2V

–

+

l

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

60

420

nA

∆I

CM

OS

l

A

VOL

V = –14.5V to 14.5V, R = 10k

V = –10V to 10V, R = 2k

700

400

6000

4000

V/mV

O

L

l

Channel Separation

V = –10V to 10V, R = 2k

112

87

84

80

132

104

100

dB

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

CMRR Match (Channel-to-Channel) (Note 5)

Power Supply Rejection Ratio

V

= V + 0.2V to V – 0.1V

CM

–

+

= V + 0.2V to V – 0.1V

V = 5V to 15V

S

PSRR Match (Channel-to-Channel) (Note 5)

Output Voltage Swing Low (Note 6)

V = 5V to 15V

S

l

V

No Load

22

180

700

50

mV

OL

OH

I

= 5mA

= 25mA

350

SINK

1400

l

Output Voltage Swing High (Note 6)

No Load

15

40

mV

I

= 5mA

300

600

SOURCE

= 25mA

1500

3000

l

I

Short-Circuit Current

27

54

4.8

27

mA

SC

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate

5.9

S

GBW

SR

f = 100kHz

A = –1, R = Open, V = 10V,

14

MHz

V/µs

4.2

8.5

V

L

O

Measured at V = 5V

O

16301fa

ꢈ

LT1630/LT1631

elecTrical characTerisTics ^Theldenotes the speciﬁcations which apply over the full operating

temperature range of –40°C < T_A< 125°C. V_S= 15V, V_CM= 0V, V_OUT= 0V, unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

–

l

V

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

525

1600

µV

OS

= V + 0.2V

l

V

TC

Input Offset Voltage Drift (Note 3)

4.5

1.5

7

4

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

l

Input Offset Voltage Shift

= V + 0.2V to V – 0.1V

220

350

1300

2200

µV

∆V

OS

–

+

Input Offset Voltage Match (Channel-to-Channel)

Input Bias Current

= V + 0.2V, V – 0.1V (Note 5)

+

l

I

V

CM

V

CM

= V – 0.1V

0

750

–750

1500

0

nA

B

–

= V + 0.2V

–1500

–

+

l

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

1380

2800

nA

∆I

B

+

–

l

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

42

460

nA

= V + 0.2V (Note 5)

+

–

l

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

30

210

nA

OS

= V + 0.2V

–

+

l

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

60

420

nA

∆I

CM

OS

l

A

VOL

V = –14.5V to 14.5V, R = 10k

V = –10V to 10V, R = 2k

700

400

6000

4000

V/mV

O

L

l

Channel Separation

V = –10V to 10V, R = 2k

112

87

84

80

132

104

100

dB

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

CMRR Match (Channel-to-Channel) (Note 5)

Power Supply Rejection Ratio

V

= V + 0.2V to V – 0.1V

CM

–

+

= V + 0.2V to V – 0.1V

V = 5V to 15V

S

PSRR Match (Channel-to-Channel) (Note 5)

Output Voltage Swing Low (Note 6)

V = 5V to 15V

S

l

V

No Load

22

180

700

60

mV

OL

OH

I

= 5mA

= 25mA

400

SINK

1500

l

Output Voltage Swing High (Note 6)

No Load

15

50

mV

I

= 5mA

300

675

SOURCE

= 25mA

1500

3300

l

I

Short-Circuit Current

27

54

4.8

27

mA

SC

Supply Current per Ampliﬁer

Gain-Bandwidth Product (Note 7)

Slew Rate

6.4

S

GBW

SR

f = 100kHz

A = –1, R = Open, V = 10V,

13

MHz

V/µs

4.2

8.5

V

L

O

Measured at V = 5V

O

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 5: Matching parameters are the difference between ampliﬁers A and

D and between B and C on the LT1631; between the two ampliﬁers on the

LT1630.

Note 6: Output voltage swings are measured between the output and

Note 2: A heat sink may be required to keep the junction temperature

below the absolute maximum rating when the output is shorted

indeﬁnitely.

power supply rails.

Note 7: V = 3V, V = 15V GBW limit guaranteed by correlation to

S

5V tests.

Note 3: This parameter is not 100% tested.

Note 8: V = 3V, V = 5V slew rate limit guaranteed by correlation to

S

Note 4: The LT1630C/LT1631C are guaranteed to meet speciﬁed

performance from 0°C to 70°C. The LT1630C/LT1631C and are designed,

characterized and expected to meet speciﬁed performance from –40°C

to 85°C but are not tested or QA sampled at these temperatures. The

LT1630I/LT1631I are guaranteed to meet speciﬁed performance from

–40°C to 85°C. The LT1630H is guaranteed to meet speciﬁed performance

from –40°C to 125°C.

15V tests.

Note 9: Minimum supply voltage is guaranteed by testing the change of

to be less than 250µV when the supply voltage is varied from 3V to

V

OS

2.7V.

16301fa

ꢀ0

LT1630/LT1631

Typical perForMance characTerisTics

V_OSDistribution, V_CM= 0V

(PNP Stage)

V_OSDistribution, V_CM= 5V

(NPN Stage)

∆V_OSShift for V_CM= 0V to 5V

50

40

30

20

10

0

50

40

30

20

10

0

50

40

30

20

10

0

V

= 5V, 0V

CM

V

= 5V, 0V

CM

V = 5V, 0V

S

= 0V

= 5V

–500

–300

–100

100

300

500

–500

–300

–100

100

300

500

–500

–300

–100

100

300

500

INPUT OFFSET VOLTAGE (µV)

1630/31 G32

1630/31 G33

1630/31 G34

Input Bias Current

Supply Current vs Supply Voltage

Supply Current vs Temperature

vs Common Mode Voltage

600

400

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

V

= 5V, 0V

S

V

= 15V

S

T

= 125°C

= 25°C

A

200

0

T

A

V

= 5V, 0V

S

–200

–400

–600

–800

–1000

T

= 125°C

= 25°C

A

T

= –55°C

A

T

A

T

= –55°C

A

16 20 24

TOTAL SUPPLY VOTAGE (V)

–50 –25

25 50 75 100 125

0

4

8

12

28 32 36

–75

0

–2 –1

1

2

3

4

5

6

TEMPERATURE (°C)

COMMON MODE VOLTAGE (V)

1630/31 G01

1630/31 G02

1630/31 G03

Output Saturation Voltage

vs Load Current (Output Low)

Output Saturation Voltage

vs Load Current (Output High)

Input Bias Current vs Temperature

1.0

0.8

10

1

10

1

V

= 5V, 0V

V = 5V, 0V

S

V

= 5V, 0V

CM

S

V

= 5V

0.6

V

CM

=

15V

= 15V

S

0.4

V

0.2

0

T = 125°C

A

T

= 125°C

A

–0.2

–0.4

–0.6

–0.8

–1.0

T

= 25°C

A

V

CM

= 15V

S

0.1

0.01

0.1

0.01

T

= 25°C

A

V

= –15V

T

= –55°C

T

A

= –55°C

A

V

= 5V, 0V

S

V

= 0V

CM

–50 –35 –20 –5 10 25 40 55 70 85 100

0.01

0.1

1

10

100

0.01

0.1

1

10

100

TEMPERATURE (°C)

LOAD CURRENT (mA)

1630/31 G05

1630/31 G06

1630/31 G04

16301fa

ꢀꢀ

LT1630/LT1631

Typical perForMance characTerisTics

Minimum Supply Voltage

Noise Voltage Spectrum

Current Noise Spectrum

35

30

25

20

15

10

5

10

9

300

250

200

150

100

50

V

= 5V, 0V

S

V = 5V, 0V

S

8

V

= 2.5V

CM

PNP ACTIVE

7

V

= 4.25V

6

5

CM

NPN ACTIVE

T

= 25°C

A

4

3

2

1

0

V

= 4.25V

CM

NPN ACTIVE

T

= 125°C

T

= –55°C

A

V

= 2.5V

CM

PNP ACTIVE

0

4

1

2

3

5

1

10

100

1000

1

10

100

1000

TOTAL SUPPLY VOLTAGE (V)

FREQUENCY (Hz)

11630/31 G09

1630/31 G10

1630/31 G07

0.1Hz to 10Hz Output

Voltage Noise

Gain Bandwidth and Phase

Margin vs Supply Voltage

Gain and Phase vs Frequency

80

70

60

50

40

30

20

10

0

180

135

90

50

45

40

35

30

25

20

15

10

5

100

90

80

70

60

50

40

30

20

10

0

V

= V /2

S

CM

V

=5V, 0V

S

= V /2

CM

S

PHASE

GAIN

45

GAIN BANDWIDTH

PHASE MARGIN

0

–45

–90

–135

–180

–225

–270

R

V

= 1k

L

S

= 3V, 0V

–10

–20

=

15V

0

0.01

0.1

1

10

100

0

5

15

20

25

30

10

TIME (1s/DIV)

FREQUENCY (MHz)

TOTAL SUPPLY VOLTAGE (V)

1630/31 G25

1630/31 G11

1630/31 G14

CMRR vs Frequency

PSRR vs Frequency

Channel Separation vs Frequency

120

110

100

90

100

–40

–50

–60

–70

–80

–90

V

= 15V

S

90

80

70

60

50

40

30

20

10

0

V

=

15V

POSITIVE SUPPLY

S

80

70

V

= 5V, 0V

NEGATIVE SUPPLY

S

60

–100

–110

–120

–130

–140

50

40

30

20

1k

10k

100k

1M

10M

1k

10k

100k

1M

10M

10

100

1k

10k

100k

1M

FREQUENCY (Hz)

1630/31 G12

1630/31 G13

1630/31 G15

16301fa

ꢀꢁ

LT1630/LT1631

Typical perForMance characTerisTics

Output Step vs

Capacitive Load Handling

Slew Rate vs Supply Voltage

Settling Time to 0.01%

60

50

40

30

20

10

0

10

8

14

13

12

11

10

9

V

= 15V

S

V

A

= 5V, 0V

= 1

= 1k

V

A

= 80% OF V

S

V

L

OUT

V

= –1

R

6

NONINVERTING

INVERTING

4

RISING EDGE

2

0

FALLING EDGE

–2

–4

–6

–8

–10

INVERTING

1.00 1.25

8

24

1

10

100

1000

0

4

8

12 16 20

28 32

0

0.25

0.75

0.50

1.50

TOTAL SUPPLY VOLTAGE (V)

SETTLING TIME (µs)

CAPACITIVE LOAD (pF)

1630/31 G16

1630/31 G17

1630/31 G18

Open-Loop Gain

200

150

100

50

20

15

8

6

V

= 15V

V

=

15V

S

V = 5V, 0V

S

L

R

= 100Ω

10

5

4

R

= 1k

L

2

R

= 10k

L

0

R

= 10k

L

R

= 1k

L

–5

–50

–100

–150

–200

–2

–4

–6

–8

–10

–15

–20

0

5

0

1

2

4

6

–20 –15 –10 –5

10 15 20

–5 –4 –3 –2 –1

3

5

7

1

2

4

0

5

6

3

OUTPUT VOLTAGE (V)

1630/31 G19

1630/31 G21

1630/31 G20

Maximum Undistorted Output

Signal vs Frequency

Total Harmonic Distortion + Noise

vs Frequency

Warm-Up Drift vs Time

40

0

5

4

3

2

1

0

1

0.1

V

= 2V

P-P

= 10k

S8 PACKAGE

= ꢀV, 0V

N8 PACKAGE

= ꢀV, 0V

IN

L

R

V

S

V

= 5V, 0V

V

S

A

= –1

–40

–80

–120

–160

–200

LT1631CS

= ꢀV, 0V

V

= 5V, 0V

V

N8 PACKAGE

1ꢀV

S

V

S

A

= 1

V

S

=

V = 3V, 0V

S

0.01

A

= 1

V

S8 PACKAGE

1ꢀV

V

=

S

V

= 5V, 0V AND 3V, 0V

S

A

= –1

0.001

V

LT1631CS

1ꢀV

V

S

=

V

= 5V, 0V

S

A

= 1

V

0.0001

80

TIME AFTER POWER-UP (SEC)

0

20 40 60

100 120 140 160

1

10

100

1000

0.1

1

10

100

FREQUENCY (kHz)

1630/31 G24

1630/31 G22

163031 G23

16301fa

ꢀꢂ

LT1630/LT1631

Typical perForMance characTerisTics

Harmonic Distortion vs Frequency

5V Small-Signal Response

5V Large-Signal Response

0

–20

V

A

V

= 5V, 0V

= 1

S

V

= 2V

IN

P-P

R

= 150Ω

= 1k

L

R

–40

2ND

–60

3RD

2ND

–80

163031 G26

163031 G27

V

A

= 5V, 0V

= 1

= 1k

V

A

= 5V, 0V

= 1

= 1k

3RD

S

V

L

S

V

L

R

–100

100

1000

200

500

FREQUENCY (kHz)

1630/31 G30

Harmonic Distortion vs Frequency

15V Small-Signal Response

15V Large-Signal Response

0

–20

V

A

V

= 5V, 0V

= –1

S

V

= 2V

IN

P-P

R

= 150Ω

= 1k

L

R

–40

2ND

–60

3RD

–80

±6303± G28

±6303± G29

2ND

V

= ±±1V

= ±

= ±k

V

= ±±1V

= ±

= ±k

S

V

L

S

V

L

3RD

A

R

–100

100

1000

200

500

FREQUENCY (kHz)

1630/31 G31

applicaTions inForMaTion

Rail-to-Rail Input and Output

tor Q5 will steer the tail current I to the current mirror

1

Q6/Q7, activating the NPN differential pair and the PNP

pair becomes inactive for the rest of the input common

mode range up to the positive supply.

The LT1630/LT1631 are fully functional for an input and

output signal range from the negative supply to the posi-

tive supply. Figure 1 shows a simpliﬁed schematic of the

ampliﬁer. The input stage consists of two differential am-

pliﬁers, a PNP stage Q1/Q2 and an NPN stage Q3/Q4 that

are active over different ranges of input common mode

voltage. The PNP differential input pair is active for input

The output is conﬁgured with a pair of complementary

common emitter stages Q14/Q15 that enables the output

to swing from rail to rail. These devices are fabricated on

Linear Technology’s proprietary complementary bipolar

process to ensure similar DC and AC characteristics. Ca-

pacitors C1 and C2 form local feedback loops that lower

the output impedance at high frequencies.

common mode voltages V between the negative supply

CM

to approximately 1.4V below the positive supply. As V

CM

moves closer toward the positive supply, the transis-

16301fa

ꢀꢃ

LT1630/LT1631

applicaTions inForMaTion

+

V

R3

R4

R5

+

Q12

I

1

Q11

Q13

Q15

D1

R6

225Ω

+IN

+

V

BIAS

Q5

I

C2

2

D2

D5

D6

R7

225Ω

–

C

V

OUT

–IN

Q4 Q3

Q1 Q2

D3

BUFFER

AND

OUTPUT BIAS

Q9

R1

Q8

D4

C1

Q7

Q6

Q14

–

R2

V

1630/31 F01

Figure 1. LT1630 Simpliﬁed Schematic Diagram

To ensure that the LT1630/LT1631 are used properly,

calculate the worst-case power dissipation, get the ther-

mal resistance for a chosen package and its maximum

junction temperature to derive the maximum ambient

temperature.

Power Dissipation

The LT1630/LT1631 ampliﬁers combine high speed and

large output current drive in a small package. Because

the ampliﬁers operate over a very wide supply range, it

is possible to exceed the maximum junction temperature

of 150°C in plastic packages under certain conditions.

Example: An LT1630CS8 operating on 15V supplies and

driving a 500Ω, the worst-case power dissipation per

ampliﬁer is given by:

Junction temperature, T , is calculated from the ambient

J

temperature, T , and power dissipation, P , as follows:

A

D

P

= (30V • 4.75mA) + (15V – 7.5V)(7.5/500)

LT1630CN8: T = T + (P • 130°C/W)

DMAX

J

A

D

= 0.143 + 0.113 = 0.256W

LT1630CS8: T = T + (P • 190°C/W)

J

A

D

LT1631CS: T = T + (P • 150°C/W)

J

A

D

If both ampliﬁers are loaded simultaneously, then the

total power dissipation is 0.512W. The SO-8 package has

a junction-to-ambient thermal resistance of 190°C/W in

stillair. Therefore, themaximumambienttemperaturethat

the part is allowed to operate is:

The power dissipation in the IC is the function of the

supply voltage, output voltage and load resistance. For

a given supply voltage, the worst-case power dissipation

P

occurs at the maximum supply current and when

DMAX

the output voltage is at half of either supply voltage (or the

maximumswingiflessthan1/2supplyvoltage).Therefore

DMAX

T = T – (P

• 190°C/W)

DMAX

A

J

T = 150°C – (0.512W • 190°C/W) = 53°C

P

is given by:

For a higher operating temperature, lower the supply

voltage or use the DIP package part.

P

DMAX

= (V • I

) + (V /2)2/R

SMAX S L

S

16301fa

ꢀꢄ

LT1630/LT1631

applicaTions inForMaTion

Input Offset Voltage

The LT1630/LT1631’s input stages are protected against

large differential input voltages by a pair of back-to-back

diodes D5/D6. When a differential voltage of more than

0.7V is applied to the inputs, these diodes will turn on,

preventingtheemitter-basebreakdownoftheinputtransis-

tors. The current in D5/D6 should be limited to less than

10mA. Internal 225Ω resistors R6 and R7 will limit the

input current for differential input signals of 4.5V or less.

For larger input levels, a resistor in series with either or

bothinputsshouldbeusedtolimitthecurrent.Worst-case

differentialinputvoltageusuallyoccurswhentheoutputis

shorted to ground. In addition, the ampliﬁer is protected

against ESD strikes up to 3kV on all pins.

The offset voltage changes depending upon which input

stage is active, and the maximum offset voltages are

trimmed to less than 525µV. To maintain the precision

characteristics of the ampliﬁer, the change of V over the

OS

entire input common mode range (CMRR) is guaranteed

to be less than 525µV on a single 5V supply.

Input Bias Current

The input bias current polarity depends on the input

common mode voltage. When the PNP differential pair is

active, the input bias currents ﬂow out of the input pins.

They ﬂow in the opposite direction when the NPN input

stage is active. The offset voltage error due to input bias

currents can be minimized by equalizing the noninverting

and inverting input source impedance.

Capacitive Load

The LT1630/LT1631 are wideband ampliﬁers that can

drive capacitive loads up to 200pF on 15V supplies in a

unity-gain conﬁguration. On a 3V supply, the capacitive

load should be kept to less than 100pF. When there is a

need to drive larger capacitive loads, a resistor of 20Ω

to 50Ω should be connected between the output and the

capacitive load. The feedback should still be taken from

the output so that the resistor isolates the capacitive load

to ensure stability.

Output

The outputs of the LT1630/LT1631 can deliver large load

currents;theshort-circuitcurrentlimitis70mA.Takecareto

keep the junction temperature of the IC below the absolute

maximum rating of 150°C (refer to the Power Dissipation

section).Theoutputoftheseampliﬁershavereverse-biased

diodestoeachsupply. Iftheoutputisforcedbeyondeither

supply, unlimited current will ﬂow through these diodes.

If the current is transient and limited to several hundred

mA, no damage to the part will occur.

Feedback Components

The low input bias currents of the LT1630/LT1631 make it

possible to use the high value feedback resistors to set the

gain. However, care must be taken to ensure that the pole

formedbythefeedbackresistorsandthetotalcapacitanceat

theinvertinginputdoesnotdegradestability.Forinstance,

Overdrive Protection

To prevent the output from reversing polarity when the

input voltage exceeds the power supplies, two pairs of

crossing diodes D1 to D4 are employed. When the input

voltage exceeds either power supply by approximately

700mV, D1/D2 or D3/D4 will turn on, forcing the output

to the proper polarity. For this phase reversal protection

to work properly, the input current must be limited to less

than 5mA. If the ampliﬁer is to be severely overdriven,

an external resistor should be used to limit the overdrive

current.

LT1630/LT1631 in a noninverting gain of 2, set with

the

two 20k resistors, will probably oscillate with 10pF total

input capacitance (5pF input capacitance and 5pF board

capacitance).Theampliﬁerhasa5MHzcrossingfrequency

and a 52° phase margin at 6dB of gain. The feedback

resistors and the total input capacitance form a pole at

1.6MHz that induces a phase shift of 72° at 5MHz! The

solution is simple: either lower the value of the resistors

or add a feedback capacitor of 10pF or more.

16301fa

ꢀꢅ

LT1630/LT1631

Typical applicaTions

Single Supply, 40dB Gain, 350kHz

Instrumentation Ampliﬁer

Tunable Q Notch Filter

A single supply, tunable Qnotch ﬁlterasshowninFigure 4

is built with LT1630 to maximize the output swing. The

ﬁlter has a gain of 2, and the notch frequency (f ) is set

Aninstrumentationampliﬁerwitharail-to-railoutputswing,

operating from a 3V supply can be constructed with the

LT1630 as shown in Figure 2. The ampliﬁer has a nominal

gain of 100, which can be adjusted with resistor R5. The

DC output level is set by the difference of the two inputs

multiplied by the gain of 100. Common mode range can

be calculated by the equations shown with Figure 2. For

example, the common mode range is from 0.15V to 2.65V

if the output is set at one half of the 3V supply. The com-

mon mode rejection is greater than 110dB at 100Hz when

trimmed with resistor R1. The ampliﬁer has a bandwidth

of 355kHz as shown in Figure 3.

O

by the values of R and C. The resistors R10 and R11 set

up the DC level at the output. The Q factor can be adjusted

by varying the value of R8. The higher value of R8 will

decrease Q as depicted in Figure 5, because the output

induces less of feedback to ampliﬁer A2. The value of R7

should be equal or greater than R9 to prevent oscillation.

If R8 is a short and R9 is larger than R7, then the positive

feedbackfromtheoutputwillcreatephaseinversionatthe

output of ampliﬁer A2, which will lead to oscillation.

C

1000pF

C1

2.2µF

5V

R5

432Ω

R4

20k

R2

2k

R

+

V

IN

1.62k

A1

V

R

OUT

S

1/2 LT1630

R1

20k

R1

1.62k

–

500Ω

R3

2k

C

R2

1k

1000pF

–

OUT1

1/2 LT1630

+

R6

1k

–

V

1/2 LT1630

+

R5

1k

C5

OUT

V

IN

–

+

V

IN

R7

1k

A2

1630/31 F02

4.7µF

5V

1/2 LT1630

+

BW = 355kHz

LOWER LIMIT COMMON MODE INPUT VOLTAGE

R10

10k

R8

5k

R9

1k

R4

R3

R2 R3+R2



















V_OUT

A_VR5

R2

1.0

1.1

A_V

=

1+

+

=100

1630/31 F04









V_CML

=

+0.1V



R1

R5













V_OUT= V ⁺– V

• A

–

C2

4.7µF

R11

10k

(

)

5V R11

IN

V

(

)(

)

UPPER LIMIT COMMON MODE INPUT VOLTAGE

f_O= 98kHz

V_O(DC)

=

= 2.5V

R11+R10















V_OUT

R2

A_VR5

1.0

1.1

V_CMH

=

+ V –0.15V

(

)

1

f_O=

S



A_V= 2













2πRC

WHERE V_SIS THE SUPPLY CURRENT

Figure 4. Tunable Q Notch Filter

Figure 2. Single Supply, 40dB Gain Instrumentation Ampliﬁer

50

40

20

40

DIFFERENTIAL INPUT

30

20

10

INCREASINGR8

DECREASINGR8

0

COMMON MODE INPUT

–10

–20

–30

–40

–50

–20

–40

V

A

= 3V

S

V

–60

–70

= 100

0

20 40 60 80 100 120 140 160 180 200

100

1k

10k

100k

1M

10M

FREQUENCY (kHz)

13630/31 F05

FREQUENCY (Hz)

1630/31 F03

Figure 3. Frequency Response

Figure 5. Frequency Response

16301fa

ꢀꢆ

LT1630/LT1631

package DescripTion

N8 Package

8-Lead PDIP (Narrow .300 Inch)

(Reference LTC DWG # 05-08-1510)

.400*

(10.160)

MAX

.130 p .005

.300 – .325

.045 – .065

(3.302 p 0.127)

(1.143 – 1.651)

(7.620 – 8.255)

8

1

7

6

5

4

.065

(1.651)

TYP

.255 p .015*

(6.477 p 0.381)

.008 – .015

(0.203 – 0.381)

.120

.020

(0.508)

MIN

(3.048)

MIN

+.035

–.015

2

3

.325

.018 p .003

(0.457 p 0.076)

.100

(2.54)

BSC

N8 1002

+0.889

8.255

ꢀ

ꢁ

–0.381

NOTE:

INCHES

1. DIMENSIONS ARE

MILLIMETERS

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)

S8 Package

8-Lead Plastic Small Outline (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1610)

.189 – .197

(4.801 – 5.004)

NOTE 3

.045 p.005

.010 – .020

(0.254 – 0.508)

7

5

8

6

s 45o

.053 – .069

(1.346 – 1.752)

.050 BSC

.004 – .010

(0.101 – 0.254)

.008 – .010

0o– 8o TYP

(0.203 – 0.254)

.150 – .157

(3.810 – 3.988)

NOTE 3

.245

MIN

.228 – .244

(5.791 – 6.197)

.160 p.005

.016 – .050

(0.406 – 1.270)

.050

(1.270)

BSC

.014 – .019

(0.355 – 0.483)

TYP

NOTE:

SO8 0303

INCHES

1. DIMENSIONS IN

(MILLIMETERS)

2. DRAWING NOT TO SCALE

3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)

.030 p.005

TYP

1

2

3

4

RECOMMENDED SOLDER PAD LAYOUT

S Package

14-Lead Plastic Small Outline (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1610)

.337 – .344

(8.560 – 8.738)

NOTE 3

.045 p.005

.160 p.005

.050 BSC

14

N

13

12

11

10

9

8

N

1

.245

MIN

.150 – .157

(3.810 – 3.988)

NOTE 3

.228 – .244

(5.791 – 6.197)

2

3

N/2

7

.030 p.005

TYP

RECOMMENDED SOLDER PAD LAYOUT

1

2

3

4

5

6

.010 – .020

(0.254 – 0.508)

s 45o

.053 – .069

(1.346 – 1.752)

.004 – .010

(0.101 – 0.254)

.008 – .010

(0.203 – 0.254)

NOTE:

1. DIMENSIONS IN

INCHES

(MILLIMETERS)

0o – 8o TYP

2. DRAWING NOT TO SCALE

3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

.050

(1.270)

BSC

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)

.014 – .019

(0.355 – 0.483)

TYP

.016 – .050

(0.406 – 1.270)

S14 0502

16301fa

ꢀꢇ

LT1630/LT1631

revision hisTory

REV

DATE

DESCRIPTION

PAGE NUMBER

A

2/2010 Changes to Absolute Maximum Ratings

Updated Order Information Section

Added H Grade Part

2

Added H Grade Electrical Characteristics Tables

6, 10

16301fa

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

ꢀꢈ

LT1630/LT1631

Typical applicaTion

RF Ampliﬁer Control Biasing and DC Restoration

5V

R4

R2

Taking advantage of the rail-to-rail input and output, and

the large output current capability of the LT1630, the

circuit, shown in Figure 6, provides precise bias currents

for the RF ampliﬁers and restores DC output level. To

ensure optimum performance of an RF ampliﬁer, its bias

point must be accurate and stable over the operating

temperature range. The op amp A1 combined with Q1,

Q2, R1, R2 and R3 establishes two current sources of

21.5mA to bias RF1 and RF2 ampliﬁers. The current of

Q1 is determined by the voltage across R2 over R1, which

is replicated in Q2. These current sources are stable and

precise over temperature and have a low dissipated power

due to a low voltage drop between their terminals. The

ampliﬁer A2 is used to restore the DC level at the output.

With a large output current of the LT1630, the output can

be set at 1.5VDC on 5V supply and 50Ω load. This circuit

has a 3dB bandwidth from 2MHz to 2GHz and a power

gain of 25dB.

R1

10Ω

453W

10Ω

5V

–

Q1

2N3906

A1

Q2

2N3906

1/2 LT1630

+

C1

R3

10k

+

C6

C5

0.01µF

L1

220µH

L2

220µH

HP-MSA0785

RF2

HP-MSA0785

RF1

C3

C2

1500pF

C4

1500pF

V

IN

OUT

L3

3.9µH

L4

3.9µH

+

A2

1630/31 F06

R5

50Ω

1/2 LT1630

–

Figure 6. RF Ampliﬁer Control Biasing and DC Restoration

relaTeD parTs

PART NUMBER DESCRIPTON

COMMENTS

Input Common Mode Includes Ground, 275µV V

LT1211/LT1212 Dual/Quad 14MHz, 7V/µs, Single Supply Precision Op Amps

,

OS(MAX)

6µV/°C Max Drift, Max Supply Current 1.8mA per Op Amp

LT1213/LT1214 Dual/Quad 28MHz, 12V/µs, Single Supply Precision Op Amps

LT1215/LT1216 Dual/Quad 23MHz, 50V/µs, Single Supply Precision Op Amps

Input Common Mode Includes Ground, 275µV V

,

OS(MAX)

6µV/°C Max Drift, Max Supply Current 3.5mA per Op Amp

Input Common Mode Includes Ground, 450µV V

,

OS(MAX)

6µV/°C Max Drift, Max Supply Current 6.6mA per Op Amp

LT1498/LT1499 Dual/Quad 10MHz, 6V/µs Rail-to-Rail Input and Output

C-Load™ Op Amps

High DC Accuracy, 475µV V , 4µV/°C Max Drift,

OS(MAX)

Max Supply Current 2.2mA per Amp

LT1632/LT1633 Dual/Quad 45MHz, 45V/µs Rail-to-Rail Input and Output Op Amps High DC Accuracy, 1.35mV V

, 70mA Output Current,

OS(MAX)

Max Supply Current 5.2mA per Amp

16301fa

LT 0210 REV A • PRINTED IN USA

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

ꢁ0

●

 LINEAR TECHNOLOGY CORPORATION 2009

(408) 432-1900 FAX: (408) 434-0507 www.linear.com


型号：	LT1630IS8
厂家：	Linear
描述：	30MHz, 10V/μs, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps 为30MHz ， 10V / μs的，双/四轨至轨输入和输出精密运算放大器运算放大器光电二极管
文件：	总20页 (文件大小：353K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LT1630IS8 [Linear]

相关型号：

SI9130DB

SI9135LG-T1

SI9135LG-T1-E3

SI9135_11

SI9136_11

SI9130CG-T1-E3

SI9130LG-T1-E3

SI9130_11

SI9137

SI9137DB

SI9137LG

SI9122E