The AD8237 is a micropower, zero drift, rail-to-rail input and output instrumentation amplifier. It features gain set with 2 external resistors, low gain drift at all gains, ideal for portable systems, maximum supply current of 130μA, rail-to-rail input and output, zero input crossover distortion, excellent dc performance, etc.
The AD8237 is a micropower, zero-drift instrumentation amplifier designed for portable systems and medical instrumentation. It features true rail-to-rail input and output capabilities, allowing it to fully amplify signals with common-mode voltages at or slightly beyond its supply rails. The device uses a novel indirect current-feedback architecture to achieve this performance while maintaining low power consumption with a typical supply current of 115 µA.
| Maximum Supply Current | 130 pA |
|---|---|
| Minimum CMRR | 110 dB |
| Maximum Offset Voltage Drift | 0.2 pV/°C |
| Maximum Gain Error | 0.005% |
| Maximum Gain Drift | 0.5 ppm/°C |
| Single-Supply Operation Range | 1.8 V to 5.5 V |
| Package Type | 8-lead MSOP |
| Gain Range | 1 to 1000 |
| Operating Temperature Range | -40°C to +125°C |
The typical supply current is 115 µA.
The minimum supply voltage is 1.8 V.
The gain is set using two external resistors.
It is ideal for bridge amplification, pressure measurement, medical instrumentation, and portable systems.