微功耗，零漂移，真正的轨到轨仪表放大器 Micropower, Zero Drift, True Rail-to-Rail Instrumentation Amplifier
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