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LMP8271 - High Common Mode / Gain of 20 / Bidirectional Precision Voltage Difference Amplifiers

Description

The LMP™8271, LMP8276 are fixed gain differential amplifiers with a -2V to 27V input common mode voltage range and a supply voltage range of 4.5V to 5.5V.

Features

  • n n n n n n n n n n n n n Bidirectional Current Sense Capability Typical Values, TA = 25˚C Input Offset Voltage 1mV max TCVos (LMP8271) 15µV/˚C max TCVos (LMP8276) 30µV/˚C max CMRR 80dB Min Extended CMVR -5V to 36V Output Voltage Swing Rail to Rail Bandwidth 80KHz Operating Temperature Range (Ambient) -40˚C to 125˚C Operating Temperature Range (bare die) -40˚C to 150˚C Supply Voltage 4.5V to 5.5V Supply Current 1mA.

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Datasheet Details

Part number LMP8271
Manufacturer National Semiconductor
File Size 468.00 KB
Description High Common Mode / Gain of 20 / Bidirectional Precision Voltage Difference Amplifiers
Datasheet download datasheet LMP8271 Datasheet
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Full PDF Text Transcription

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LMP8271,LMP8276 High Common Mode, Gain of 20, Bidirectional Precision Voltage Difference Amplifiers PRELIMINARY January 2005 LMP8271, LMP8276 High Common Mode, Gain of 20, Bidirectional Precision Voltage Difference Amplifiers General Description The LMP™8271, LMP8276 are fixed gain differential amplifiers with a -2V to 27V input common mode voltage range and a supply voltage range of 4.5V to 5.5V. The LMP8271, LMP8276 are precision amplifiers which will detect, amplify and filter small differential signals in the presence of high common mode voltages. The gain is fixed at 20 and is adequate to drive an ADC to full scale in most cases. This fixed gain is achieved in two separate stages, a pre-amplifier with gain of +10 and a second stage amplifier with a gain of +2.
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