The AD626 is a low-cost, true single-supply differential amplifier designed for amplifying and low-pass filtering low-level signal sources such as pressure transducers, position indicators, strain gages, and other low level signal sources.
The AD626 is a low‑cost, true single‑supply differential amplifier designed for amplifying small differential voltages with a large common‑mode range. It offers pin‑selectable gains of 10 or 100, operates from either a single supply (+2.4 V to +10 V) or dual supplies (+1.2 V to +6 V), and includes optional low‑pass filtering.
The datasheet provides full electrical specifications, absolute maximum ratings, package dimensions for PDIP and SOIC options, and example application circuits such as current‑sensor and bridge configurations. It also lists ordering information and revision history.
| Gain selectable | 10 and 100 |
|---|---|
| Supply voltage range | Single‑Supply +2.4 V to +10 V; Dual‑Supply +1.2 V to +6 V |
| Input offset voltage | 500 pV max |
| Common‑mode voltage range | 0 V to +54 V |
| Quiescent current (gain = 10) | 0.16 mA typical |
| Operating temperature range | -40 °C to +85 °C |
| Package options | 8‑Lead Plastic Mini‑DIP (PDIP) and 8‑Lead SOIC (R) |
The AD626 offers pin‑selectable gains of 10 and 100.
It can run from a single supply of +2.4 V to +10 V or from dual supplies of +1.2 V to +6 V.
The datasheet lists a low input offset voltage of 500 pV maximum.