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AD8231 - Digital Programmable Instrumentation Amplifier

Datasheet Summary

Description

The AD8231 is a low drift, rail-to-rail, instrumentation amplifier with software-programmable gains of 1, 2, 4, 8, 16, 32, 64, or 128.

The gains are programmed via digital logic or pin strapping.

Features

  • Digitally/pin-programmable gain.
  • G = 1, 2, 4, 8, 16, 32, 64, or 128.
  • Specified from.
  • 40°C to +125°C.
  • 50 nV/°C maximum input offset drift.
  • 10 ppm/°C maximum gain drift.
  • Excellent dc performance.
  • 80 dB minimum CMR, G = 1.
  • 15 µV maximum input offset voltage.
  • 500 pA maximum bias current.
  • 0.7 µV p-p noise (0.1 Hz to 10 Hz).
  • Good ac performance.
  • 2.7 MHz bandwidth, G = 1.
  • 1.1 V/μs slew rate.
  • Rail-to-rail output.
  • Shutdow.

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Datasheet preview – AD8231

Datasheet Details

Part number AD8231
Manufacturer Analog Devices
File Size 2.11 MB
Description Digital Programmable Instrumentation Amplifier
Datasheet download datasheet AD8231 Datasheet
Additional preview pages of the AD8231 datasheet.

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Full PDF Text Transcription

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Data Sheet AD8231 Zero Drift, Digitally Programmable Instrumentation Amplifier FEATURES ► Digitally/pin-programmable gain ► G = 1, 2, 4, 8, 16, 32, 64, or 128 ► Specified from −40°C to +125°C ► 50 nV/°C maximum input offset drift ► 10 ppm/°C maximum gain drift ► Excellent dc performance ► 80 dB minimum CMR, G = 1 ► 15 µV maximum input offset voltage ► 500 pA maximum bias current ► 0.7 µV p-p noise (0.1 Hz to 10 Hz) ► Good ac performance ► 2.7 MHz bandwidth, G = 1 ► 1.1 V/μs slew rate ► Rail-to-rail output ► Shutdown/multiplex ► Extra op amp ► Single-supply range: 3 V to 5 V ► Dual-supply range: ±1.5 V to ±2.
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