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LTC1250

Linear Technology
Part Number LTC1250
Manufacturer Linear Technology
Description Very Low Noise Zero-Drift Bridge Amplifier
Published Mar 22, 2005
Detailed Description U U FEATURES ■ Very Low Noise: 0.75µVP-P Typ, 0.1Hz to 10Hz ■ DC to 1Hz Noise Lower Than OP-07 ■ Full Output Swing into...
Datasheet PDF File LTC1250 PDF File

LTC1250
LTC1250

Overview
U U FEATURES ■ Very Low Noise: 0.
75µVP-P Typ, 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 U 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.
LTC1250 Very Low Noise Zero-Drift Bridge Amplifier DESCRIPTIO The LTC®1250 is a high performance, very low noise zerodrift 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.
75µVP-P from 0.
1Hz to 10Hz, and 0.
2µVP-P from 0.
1Hz to 1Hz.
The LTC1250 has DC to 1Hz noise of 0.
35µVP-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 ...


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