AD8293G80/AD8293G160 is a low-cost, zero-drift in-amp with built-in filter and fixed gain. It features small package, low offset voltage, low offset drift, low gain drift, high common mode rejection ratio, low noise, etc. It is suitable for applications such as current sensing, strain gauges, laser diode control loops, portable medical instruments, thermocouple amplifiers, etc.
The AD8293G80 and AD8293G160 are precision instrumentation amplifiers offered in an 8‑lead SOT‑23 package. They integrate gain‑setting and filter resistors, providing a small component count and rail‑to‑rail output. Two fixed‑gain versions are available: 80 (AD8293G80) and 160 (AD8293G160). Features include ultra‑low offset voltage, low offset drift, low noise, and high common‑mode rejection.
The datasheet provides full electrical characteristics, pin descriptions, typical performance graphs, and absolute maximum ratings. Operating supply voltage ranges from 1.8 V to 5.5 V, and the devices are specified for an industrial temperature range of –40 °C to +85 °C. Applications include current sensing, strain‑gauge measurement, laser‑diode control loops, portable medical instruments, and thermocouple amplification.
| Gain | 80 (AD8293G80), 160 (AD8293G160) |
|---|---|
| Common‑Mode Rejection (CMR) | 140 dB typical |
| Voltage Noise (0.01 Hz‑10 Hz) | 0.7 pV p‑p |
| Package | 8‑lead SOT‑23 (RJ) |
The AD8293 is available in two fixed‑gain models: 80 (AD8293G80) and 160 (AD8293G160).
The typical CMR is 140 dB.