The AD8237 is a micropower, zero drift, rail-to-rail input and output instrumentation amplifier. The relative matching of two resistors sets the gain anywhere from 1 to 1000. The AD8237 has excellent gain accuracy performance that can be maintained at any gain with two ratio-matched resistors.
The AD8237 uses indirect current feedback architecture to achieve true rail-to-rail capability. Unlike conventional internal amplifiers, the AD8237 can fully amplify signals at or even slightly beyond their supply, with common-mode voltage. This allows applications with high common-mode voltages to use smaller consumables and save power.
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