AD8237 Datasheet PDF

●GENERAL DESCRIPTION

●The AD8237 is a micropower, zero drift, rail-to-rail input and output instrumentation amplifier. The relative match of two resistors sets any gain from 1 to 1000. The AD8237 has excellent gain accuracy performance that can be preserved at any gain with two ratio-matched resistors.

●FEATURES

●Gain set with 2 external resistors

●  Can achieve low gain drift at all gains

●Ideal for battery powered instruments

●  Supply current: 115 µA

●  Rail-to-rail input and output

●  Zero input crossover distortion

●Designed for excellent dc performance

●  Minimum CMRR: 106 dB

●  Maximum offset voltage drift: 0.3 µV/°C

●  Maximum gain error: 0.005% (all gains)

●  Maximum gain drift: 0.5 ppm/°C (all gains)

●  Input bias current: 1 nA guaranteed to 125°C

●Bandwidth mode pin (BW) to adjust compensation

●8 kV HBM ESD rating

●RFI filter on-chip

●Single-supply operation: 1.8 V to 5.5 V

●8-lead MSOP package

●APPLICATIONS

●Bridge amplification

●Pressure measurement

●Medical instrumentation

●Thermocouple interface

●Portable systems

●Current measurement