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AD621 Low Power Instrumentation Amplifier Datasheet

Photograph
AD621AN - AD621 Low Power Instrumentation Amplifier

Features

arrowEasy To Use

  • - Pin-Strappable Gains of 10 and 100
  • - All Errors Specified for Total System Performance
  • - Higher Performance than Discrete Instrumentation Amp Designs
  • - Low Power, 1.3mA Max Supply Current
  • - Wide Power Supply Range (±2.3V to ±18V)

arrowExcellent DC Performance ("B Grade")

  • - 0.15% Max, Total Gain Error
  • - ±5 ppm/°C, Total Gain Drift
  • - 125 µV Max, Total Offset Voltage
  • - 1.0 µV/°C Max, Offset Voltage Drift

arrowLow Noise

  • - 9 nV/sqrHz, @ 1kHz, Input Voltage Noise
  • - 0.28 µV p-p Noise (0.1Hz to 10 Hz)

arrowExcellent AC Specifications

  • - 800 kHz Bandwidth (G=10), 200kHz (G=100)
  • - 12 µs Settling Time to 0.01%

arrowApplications

  • - Weight Scales
  • - ECG and Medical Instrumentation
  • - Transducer Interface
  • - Data Acquisition Systems
  • - Industrial Process Controls
  • - Battery Powered and Portable Equipment

Pin Layout
Analog Devices AD621 Pin Layout

Pin Description
Pin Number Description
1 G - Gain Setting
2 -IN - Inverting Input
3 +IN - Non-Inverting Input
4 -Vs - Negative Power Supply
5 REF - Reference
6 OUT - Output
7 +Vs - Positive Power Supply
8 G - Gain Setting
Dimensional Drawing
AD620AN - PDIP8 Dimension Drawing

Technical Data

Datasheet

Analog Devices website - Datasheet for AD621 AD621 Datasheet

Application Notes