SDC/RDC1767/1768
The AD522 is a precision instrumentation amplifier from Analog Devices designed for high‑accuracy data‑acquisition applications. It offers low drift, low noise, high CMRR and a wide gain range, making it suitable for bridge‑type sensor circuits such as strain‑gauge and thermistor measurements.
The document provides detailed specifications, typical application wiring, error‑budget analysis, and guidance on gain‑resistor selection, shielding, and optional offset/CMR trimming. It also describes special features like the sense output and reference terminal for remote load sensing.
| Gain Range | 1 to 1000 |
|---|---|
| Low Drift | 2.0 µV/°C (AD522B) |
| Low Nonlinearity | 0.005% (G = 100) |
| High CMRR | >110 dB (G = 7000) |
| Quiescent Current | 10 mA (max @ 15 V) |
| Package | 14‑pin DIP |
The AD522 supports a gain range from 1 to 1000.
The device is packaged in a 14‑pin DIP.