LT1009MH [Linear]

2.5V Reference; 2.5V参考


型号：	LT1009MH
厂家：	Linear
描述：	2.5V Reference 2.5V参考
文件：	总8页 (文件大小：144K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LT1009 Series

2.5V Reference

FEATURES

DESCRIPTIO

The LT^®1009 is a precision trimmed 2.5V shunt regulator

diodefeaturingamaximuminitialtoleranceofonly±5mV.

The low dynamic impedance and wide operating current

range enhances its versatility. The 0.2% reference toler-

ance is achieved by on-chip trimming which not only

minimizes the initial voltage tolerance but also minimizes

the temperature drift.

■

Maximum Initial Tolerance: 0.2%

■

Guaranteed Temperature Stability

■

Maximum 0.6Ω Dynamic Impedance

Wide Operating Current Range

■

Directly Interchangeable with LM136 for Improved

Performance

■

No Adjustments Needed for Minimum Temperature

Coefficient

Even though no adjustments are needed with the LT1009,

athirdterminalallowsthereferencevoltagetobeadjusted

±5% to calibrate out system errors. In many applications,

the LT1009 can be used as a pin-to-pin replacement of the

LM136 and the external trim network eliminated.

APPLICATIO S

■

Reference for 5V Systems

■

8-Bit A/D and D/A Reference

■

Digital Voltmeters

Foralowerdrift2.5Vreference,seetheLT1019datasheet.

■

Current Loop Measurement and Control Systems

■

, LTC and LT are registered trademarks of Linear Technology Corporation.

Power Supply Monitor

TYPICAL APPLICATION

2.5V Reference

Output Voltage

2.53

5V TO 35V

2.52

3.6k

GUARANTEED

MAXIMUM

2.51

OUTPUT

10k*

LT1009

TRIM

TYPICAL

2.50

2.49

2.48

2.47

GUARANTEED

MINIMUM

*DOES NOT AFFECT

TEMPERATURE COEFFICIENT.

±5% TRIM RANGE

1009 TA01

TEMPERATURE (°C)

100 125

–50 –25

1009 TA02

LT1009 Series

W W

U W

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Operating Temperature Range

Reverse Current.................................................... 20mA

Forward Current ................................................... 10mA

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

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

LT1009/LT1009C .................................. 0°C to 70°C

LT1009I........................................... –40°C to 85°C

LT1009M........................................ –55°C to 125°C

W U

PACKAGE/ORDER INFORMATION

BOTTOM VIEW

TOP VIEW

BOTTOM VIEW

ADJ

–

ADJ

–

ADJ

Z PACKAGE

3-LEAD PLASTIC TO-92

H PACKAGE

3-LEAD TO-46 METAL CAN

S8 PACKAGE

8-LEAD PLASTIC SO

T_JMAX= 150°C, θ_JA= 440°C/ W, θ_JC= 80°C/ W

T_JMAX= 100°C, θ_JA= 160°C/ W

T_JMAX= 150°C, θ_JA= 190°C/ W

ORDER PART NUMBER

LT1009S8

LT1009IS8

LT1009CZ

LT1009IZ

LT1009MH

LT1009CH

S8 PART MARKING

1009

1009I

AVAILABLE OPTIO S

PACKAGE STYLE

TEMPERATURE

ACCURACY

COEFFICIENT

(ppm/°C)

TO-46

(H)

SO-8

(S8)

TO-92

(Z)

TEMPERATURE

(%)

0°C to 70°C

0.20

0.40

LT1009CH

LT1009CZ

LT1009S8

LT1009IS8

–40°C to 85°C

–55°C to 125°C

0.20

0.40

LT1009IZ

0.20

LT1009MH

LT1009 Series

ELECTRICAL CHARACTERISTICS

For MIL-STD components, please refer to LTC883C data sheet for test listing and parameters.

The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are T = 25°C.

LT1009M

MIN TYP MAX

LT1009I

LT1009/LT1009C

SYMBOL PARAMETER

CONDITIONS

T = 25°C, I = 1mA,

MIN TYP MAX MIN TYP MAX

UNITS

Reverse Breakdown

Voltage

H, Z Pkg

S Pkg

2.495 2.500 2.505 2.495 2.500 2.505 2.495 2.500 2.505

2.49 2.50 2.51 2.49 2.50 2.51

∆V

Reverse Breakdown

Change with Current

400µA ≤ I ≤ 10mA

2.6

3.0

2.6

3.0

2.6

3.0

∆I

●

Reverse Dynamic

Impedance

I = 1mA

0.2

0.4

0.6

1.0

0.2

0.4

1.0

1.4

0.2

0.4

1.0

1.4

Ω

●

Temperature Stability

Average Temperature

MIN

≤ T ≤ T

MAX

1.8

∆V

0°C ≤ T ≤ 70°C

–40°C ≤ T ≤ 85°C

–55°C ≤ T ≤ 125°C

ppm/°C

∆Temp Coefficient (Notes 2, 3)

∆V Long-Term Stability

T = 25°C ±0.1°C

ppm/kHr

∆Time

I = 1mA

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 3: Average temperature coefficient is defined as the total voltage

change divided by the specified temperature change.

Note 2: Guaranteed by Design.

TYPICAL PERFORMANCE CHARACTERISTICS

Reverse Characteristics

Forward Characteristics

Reverse Voltage Change

–1

1.2

1.0

0.8

0.6

0.4

0.2

= 25°C

–2

–3

–4

–5

= 25°C

= 125°C

= –55°C

0.001

0.01

0.1

0.5

1.0

1.4

1.8

2.2

2.6

REVERSE CURRENT (mA)

FORWARD CURRENT (mA)

REVERSE VOLTAGE (V)

1009 G02

1009 G03

1009 G01

LT1009 Series

TYPICAL PERFORMANCE CHARACTERISTICS

Dynamic Impedance

Output Noise Voltage

Response Time

3.5

3.0

2.5

2.0

1.5

1.0

0.5

100

250

200

150

100

= 1mA

–55°C ≤ T ≤ 125°C

OUTPUT

= 25°C

INPUT

OUTPUT

INPUT

0.1

100

FREQUENCY (Hz)

10k

100k

10k

100k

100

TIME (µs)

FREQUENCY (Hz)

1009 G06

1009 G04

1009 G05

SCHE ATIC DIAGRA

50k

Q17

24k 24k

6.6k

20pF

30pF

Q16

10k

500Ω

Q10

Q11

Q15

ADJ

30k

6.6k

Q13

Q12

Q14

1.1k

Q18

–

1009 SD

LT1009 Series

TYPICAL APPLICATIONS

Wide Supply Range, Adjustable Reference

Low Temperature Coefficient Power Regulator

3.6V TO 40V

LT317A

IN OUT

OUT

ADJ

LM334

1.2k

–

62Ω

375Ω

LT1009

10k

LT1009

1009 TA03

1009 TA04

Switchable ±1.25V Bipolar Reference

10k

LT1009

–5V

OUT

9.76k

500Ω

1009 TA05

–5V

LT1009 Series

PACKAGE DESCRIPTION ^{Dimensions in inches (millimeters) unless otherwise noted.}

H Package

2-Lead and 3-Lead TO-46 Metal Can

(LTC DWG # 05-08-1340)

0.209 – 0.219

(5.309 – 5.537)

0.178 – 0.195

0.100

(2.540)

TYP

0.050

(1.270)

TYP

0.050

(1.270)

TYP

0.085 – 0.105

(2.159 – 2.667)

(4.521 – 4.953)

0.500

(12.700)

MIN

PIN 1

FOR 3-LEAD PACKAGE ONLY

REFERENCE

PLANE

45°

0.025

0.028 – 0.048

0.036 – 0.046

(0.635)

MAX

(0.711 – 1.219)

(0.914 – 1.168)

H02/03(TO-46) 1098

0.016 – 0.021**

(0.406 – 0.533)

*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE

AND 0.045" BELOW THE REFERENCE PLANE

0.016 – 0.024

**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS

(0.406 – 0.610)

DIA

Z Package

3-Lead Plastic TO-92 (Similar to TO-226)

(LTC DWG # 05-08-1410)

0.180 ± 0.005

(4.572 ± 0.127)

0.060 ± 0.005

0.060 ± 0.010

(1.524 ± 0.254)

(1.524± 0.127)

DIA

0.90

(2.286)

NOM

0.140 ± 0.010

(3.556 ± 0.127)

0.180 ± 0.005

(4.572 ± 0.127)

Z3 (TO-92) 1098

5°

NOM

10° NOM

0.500

(12.70)

MIN

0.050

(1.270)

MAX

UNCONTROLLED

LEAD DIMENSION

0.015 ± 0.002

(0.381 ± 0.051)

0.016 ± 0.003

(0.406 ± 0.076)

0.050

(1.27)

BSC

LT1009 Series

PACKAGE DESCRIPTION ^{Dimensions in inches (millimeters) unless otherwise noted.}

S8 Package

8-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

0.189 – 0.197*

(4.801 – 5.004)

0.150 – 0.157**

(3.810 – 3.988)

0.228 – 0.244

(5.791 – 6.197)

0.010 – 0.020

(0.254 – 0.508)

× 45°

0.053 – 0.069

(1.346 – 1.752)

0.004 – 0.010

(0.101 – 0.254)

0.008 – 0.010

(0.203 – 0.254)

0°– 8° TYP

0.016 – 0.050

(0.406 – 1.270)

0.050

(1.270)

BSC

0.014 – 0.019

(0.355 – 0.483)

TYP

*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

SO8 1298

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 represen-

tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.

LT1009 Series

TYPICAL APPLICATION

Low Noise 2.5V Buffered Reference

1µF

≥ 6V

10k

LT1001C

–

2.5V

10k

20µF

100k

LT1009

20µF

1009 TA06

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PART NUMBER

DESCRIPTION

COMMENTS

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Bandgap, 0.05%, 5ppm/°C

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Micropower Precision Shunt Voltage Reference

Micropower Precision Series Reference

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LT1634

LT1461

1009sfa LT/TP 0200 2K REV A • PRINTED IN USA

LINEAR TECHNOLOGY CORPORATION 1985

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

●

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

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