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.
The AD8237 employs the indirect current feedback architecture to achieve a true rail-to-rail capability. Unlike conventional in-amps, the AD8237 can fully amplify signals with common-mode voltage at or even slightly beyond its supplies. This enables applications with high common-mode voltages to use smaller supplies and save power.
The AD8237 is an excellent choice for portable systems. With a minimum supply voltage of 1.8 V, a 115 μA typical supply current, and wide input range, the AD8237 makes full use of a limited power budget, yet offers bandwidth and drift performance suitable for bench-top systems.
Features and BenefitsCan achieve low gain drift at all gains Supply current: 115 μA Rail-to-rail input and output Zero input crossover distortion Minimum CMRR: 106 dB Maximum offset voltage drift: 0.3 μV/°C See data sheet for additional features 1.8 V to 5.5 V | AmplifiersHealthcare
Building Technology
Aerospace and Defense
SPICE ModelsReference Designs |
| Document | note |
| AD8237: Micropower, Zero Drift, True Rail-to-Rail Instrumentation Amplifier Datasheet (Rev. 0) | PDF 284 kB |
| Document | note |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| AD8237ARMZ Production | 8 ld MSOP | OTH 50 | -40 to 125C | 1.16 | 0.93 | Y |
| AD8237ARMZ-R7 Production | 8 ld MSOP | REEL 1000 | -40 to 125C | 0 | 0.93 | Y |
| AD8237ARMZ-RL Production | 8 ld MSOP | REEL 3000 | -40 to 125C | 0 | 0.93 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-INAMP-ICF-RMZ | Evaluation Board for AD8420 and 8237 | 34.58 | Y |
