Datasheet > LTC1250

LTC1250

更新时间： 2023-12-20 18:44:58

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
12页	179K
描述
非常低噪声零漂移桥式放大器

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中文翻译

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LTC1250 数据手册

LTC1250

Very Low Noise

Zero-Drift Bridge Amplifier

DESCRIPTIO

FEATURES

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

drift operational amplifier. The LTC1250’s combination of

lowfront-endnoiseandDCprecisionmakesitidealforuse

with low impedance bridge transducers. The LTC1250

features typical input noise of 0.75µV_P-Pfrom 0.1Hz to

10Hz, and 0.2µV_P-Pfrom 0.1Hz to 1Hz. The LTC1250 has

DCto1Hznoiseof0.35µV_P-P, surpassingthatoflownoise

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.

■

Very Low Noise: 0.75µV_P-PTyp, 0.1Hz to 10Hz

■

DC to 1Hz Noise Lower Than OP-07

■

Full Output Swing into 1k Load

■

Offset Voltage: 10µV Max

■

Offset Voltage Drift: 50nV/°C Max

■

Common Mode Rejection Ratio: 110dB Min

■

Power Supply Rejection Ratio: 115dB Min

■

No External Components Required

■

Pin Compatible with Standard 8-Pin Op Amps

■

Available in Standard 8-Pin Plastic DIP

and 8-Pin SO Packages

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.

APPLICATIO S

■

Electronic Scales

■

Strain Gauge Amplifiers

■

Thermocouple Amplifiers

■

High Resolution Data Acquisition

■

Low Noise Transducers

Instrumentation Amplifiers

■

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

trademarks are the property of their respective owners. Protected by U.S. Patents

including 4933642.

The LTC1250 is available in a standard 8-pin plastic DIP

and 8-pin SO packages.

TYPICAL APPLICATIO

Differential Bridge Amplifier

Input Referred Noise 0.1Hz to 10Hz

= ±5V

= 10k

50Ω

GAIN

TRIM

1000pF

18.2k

0.1µF

350Ω

STRAIN

GAUGE

–

= 100

LTC1250

–1

–2

1000pF

18.2k

–5V

1250 TA01

–5V

TIME (s)

LT1250 TA02

1250fb

12 3 4 5 6 7...12

中文翻译

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与LTC1250相关器件

型号	品牌	获取价格	描述	数据表
LTC1250_05	Linear	获取价格	Very Low Noise Zero-Drift Bridge Amplifier
LTC1250C	Linear	获取价格	Very Low Noise Zero-Drift Bridge Amplifier
LTC1250CJ8	Linear	获取价格	Very Low Noise Zero-Drift Bridge Amplifier
LTC1250CN8	Linear	获取价格	Very Low Noise Zero-Drift Bridge Amplifier
LTC1250CN8#PBF	Linear	获取价格	LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier; Package: PDIP; Pins: 8; Temperature
LTC1250CS8	Linear	获取价格	Very Low Noise Zero-Drift Bridge Amplifier
LTC1250CS8#PBF	Linear	获取价格	LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier; Package: SO; Pins: 8; Temperature Ra
LTC1250CS8#TR	Linear	获取价格	LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier; Package: SO; Pins: 8; Temperature Ra
LTC1250CS8#TRPBF	Linear	获取价格	LTC1250 - Very Low Noise Zero-Drift Bridge Amplifier; Package: SO; Pins: 8; Temperature Ra
LTC1250M	Linear	获取价格	Very Low Noise Zero-Drift Bridge Amplifier

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