LTC1250CS8 datasheet(1/8 Pages) LINER

部件名	LTC1250CS8

功能描述	Very Low Noise Zero-Drift Bridge Amplifier

PDF	8 Pages

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制造商	LINER [Linear Technology]

网页	http://www.linear.com

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1

LTC1250

Very Low Noise

Zero-Drift Bridge Amplifier

s

Electronic Scales

s

Strain Gauge Amplifiers

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Thermocouple Amplifiers

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High Resolution Data Acquisition

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Low Noise Transducers

s

Instrumentation Amplifiers

S

APPLICATI

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Very Low Noise: 0.75

µVP-P Typ, 0.1Hz to 10Hz

s

DC to 1Hz Noise Lower Than OP-07

s

Full Output Swing into 1k Load

s

Offset Voltage: 10

µV Max

s

Offset Voltage Drift: 50nV/

°C Max

s

Common-Mode Rejection Ratio: 110dB Min

s

Power Supply Rejection Ratio: 115dB Min

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No External Components Required

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Pin-Compatible with Standard 8-Pin Op Amps

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FEATURE

DESCRIPTIO

The LTC

®1250 is a high performance, very low noise zero-

drift operational amplifier. The LTC1250’s combination of

low front-end noise and DC precision makes it ideal for use

with low impedance bridge transducers. The LTC1250

features typical input noise of 0.75

µVP-P from 0.1Hz to

10Hz, and 0.2

µVP-P from 0.1Hz to 1Hz. The LTC1250 has

DC to 1Hz noise of 0.35

µVP-P, surpassing that of low noise

bipolar parts including the OP-07, OP-77, and LT1012.

The LTC1250 uses the industry-standard single op amp

pinout, and requires no external components or nulling

signals, allowing it to be a plug-in replacement for bipolar

op amps.

The LTC1250 incorporates an improved output stage

capable of driving 4.3V into a 1k load with a single 5V

supply; it will swing

±4.9V into 5k with ±5V supplies. The

input common mode range includes ground with single

power supply voltages above 12V. Supply current is 3mA

with a

±5V supply, and overload recovery times from

positive and negative saturation are 0.5ms and 1.5ms,

respectively. The internal nulling clock is set at 5kHz for

optimum low frequency noise and offset drift; no external

connections are necessary.

The LTC1250 is available in standard 8-pin ceramic and

plastic DIPs, as well as an 8-pin SOIC package.

Input Referred Noise 0.1Hz to 10Hz

TIME (s)

0

1

2

8

LT1250 TA02

0

–1

–2

2

4

6

10

VS = ±5V

AV = 10k

Differential Bridge Amplifier

–

+

5V

–5V

1000pF

18.2k

1000pF

18.2k

7

6

4

3

2

–5V

0.1

µF

5V

AV = 100

1250 TA01

350

Ω

STRAIN

GAUGE

50

Ω

GAIN

TRIM

LTC1250

APPLICATI

TYPICAL

and LTC are registered trademarks and LT is a trademark of Linear Technology Corporation.

类似零件编号 - LTC1250CS8

制造商	部件名	数据表	功能描述
Linear Technology	LTC1250CS8	175Kb / 12P	Very Low Noise Zero-Drift Bridge Amplifier

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