LTC1052MDR [TI]

IC OP-AMP, 5 uV OFFSET-MAX, 1.2 MHz BAND WIDTH, PDSO8, SOIC-8, Operational Amplifier;


型号：	LTC1052MDR
厂家：	TEXAS INSTRUMENTS
描述：	IC OP-AMP, 5 uV OFFSET-MAX, 1.2 MHz BAND WIDTH, PDSO8, SOIC-8, Operational Amplifier 放大器光电二极管
文件：	总4页 (文件大小：42K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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SLOS089A − D3238, MAY 1988−REVISED JULY 1991

• Input Offset Voltage . . . 5 µV Max at 25°C

D OR P PACKAGE

(T0P VIEW)

• Temperature Coefficient of Input Offset

Voltage . . . 0.001 µV/°C Typ

IN−

• Long-Term Drift of Input Offset Voltage

DD+

100 nV/mo Typ

IN+

OUT

CLAMP

DD−

• Maximum Input Bias Current . . . 30 pA at

25°C

• Minimum Differential Voltage Amplification

AVAILABLE OPTIONS

PACKAGE

Over Full Temperature Range . . . 120 dB

• Minimum Common-Mode Rejection Ratio

MAX

SMALL OUTLINE

PLASTIC DIP

(P)

at 25°C

Over Full Temperature Range . . . 120 dB

(D)

−40°C

85°C

• Minimum Supply Voltage Rejection Ratio

5 µV

LTC1052CD

LTC1052CP

LTC1052MP

Over Full Temperature Range . . . 120 dB

−55°C

125°C

• Single-Supply Operation from 4.75 V to

16 V (Input Voltage Range Extends to

Ground)

5 µV

LTC1052MD

The D package is available taped and reeled. Add the suffix R,

(e.g., LTC1052CDR).

• External Capacitors Can Be Returned to

with No Noise Degradation

CC−

description

The LTC1052 is a low-noise chopper-stabilized operational amplifier manufactured using CMOS silicon-gate

technology. The device is well-suited for applications such as thermocouple amplifiers, strain-gauge amplifiers,

low-level signal processing, and medical instrumentation.

Chopper stabilization constantly corrects input offset voltage errors, including both errors in the initial input offset

voltage and errors in input offset voltage due to time, temperature, and common-mode input voltage. The

chopper circuitry is internal and completely transparent to the user. Only two external capacitors are required

to alternately sample and hold the offset correction voltage and the amplified input signal.

Low-frequency (1/f) noise is also improved by the chopping technique. Instead of noise increasing continuously

at a rate of 3 dB/octave, the internal chopping causes noise to decrease at low frequencies. Picoampere input

currents further enhance the performance of this device.

The C-suffix devices are characterized for operation from −40°C to 85°C. The M-suffix devices are

characterized for operation over the full military temperature range of −55°C to 125°C.

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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage, V

(see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V

(see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −8 V

DD+

DD−

Input voltage range, V (any input, see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16 V

Duration of short-circuit current at (or below) 25°C (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited

Operating free-air temperature, T : C-suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 85°C

M-suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C

Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C

NOTES: 1. All voltage values, except differential voltages, are with respect to the midpoint between V

DD+

and V .

DD−

2. Connecting any terminal to voltages greater than V

or less than V may cause destructive latch-up. No sources operating from

DD+

DD−

external supplies should be applied prior to device power up.

3. The output may be shorted to either supply.

electrical characteristics at specified free-air temperature, V

= 5 V (unless otherwise noted)

LTC1052C

LTC1052M

†

PARAMETER

TEST CONDITIONS

UNIT

‡

MIN TYP

MAX

MIN TYP‡ MAX

Input offset voltage

25°C

0.5

µV

Temperature coefficient

of input offset voltage

VIO

Full range

0.01

0.05

0.01

0.05 µV/°C

Long-term drift of input

offset voltage

25°C

100

nV/mo

= 0,

R = 50 Ω

25°C

Full range

25°C

350

Input offset current

Input bias current

2000

Full range

175

1000

−5

2.7

−5

2.7

Common-mode input

voltage range

= 50 Ω

Full range

ICR

Maximum peak output

voltage swing

= 100 kΩ, See Note 4

25°C

Full range

25°C

4.95

150

4.95

150

= 10 kΩ,

See Note 4

4.7

Large-signal differential

voltage amplification

120

4 V,

= 10 kΩ

Full range

Internal chopping

frequency

25°C

330

100

330

100

25°C

Full range

25°C

= 100 kΩ

= −4 V to 4 V

µA

On-state clamp current

Off-state clamp current

140

150

1.7

100

140

150

1.7

100

Full range

25°C

Common-mode

= 0,

= V

ICR

min,

120

CMRR

rejection ratio

= 50 Ω

Full range

25°C

Supply-voltage rejection

CC = 2.375 V to 8 V,

SVR

ratio (∆V

/∆V

)

= 0,

= 50 Ω

Full range

25°C

Supply current

= 0,

No load

Full range

†

‡

Full range is −40°C to 85°C for the LTC1052C and −55°C to 125°C for the LTC1052M.

All typical values are at T = 25°C.

NOTE 4: Output clamp is not connected.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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operating characteristics, V

= 5 V, T = 25°C

PARAMETER

TEST CONDITIONS

= 10 kΩ, = 50 pF

MIN

TYP

MAX

UNIT

Slew rate

V/µs

= 100 kΩ to 10 Hz

= 100 kΩ to 1 Hz

1.5

0.5

0.6

1.2

Peak-to-peak equivalent input noise voltage

µV

NPP

Input noise current (see Note 5)

Gain bandwidth product

f = 10 Hz

fA/√Hz

MHz

GBP

1/2

, where q = 1.6 × 10

−19

NOTE 5: Equivalent input noise current is calculated as follows: I = (2q × I

)

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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LTC1052MDR [TI]

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