AD626 is a low cost, single-supply differential amplifier designed for amplifying and low-pass filtering.
The AD626 differential amplifier is designed for amplifying and low‑pass filtering small differential signals from sources with large common‑mode voltages. It operates from a single supply of +2.4 V to +10 V or dual supplies of ±1.2 V to ±6 V, offering selectable gains of 10 and 100 and an optional low‑pass filter.
Available in 8‑lead plastic DIP and SOIC packages, the device is suited for current‑sensing, pressure‑transducer, position‑indicator and strain‑gage applications. The datasheet provides detailed specifications, absolute‑maximum ratings, ordering information, performance graphs, and application circuits such as current‑sensor and bridge configurations.
| Gain options | 10 or 100 (selectable) |
|---|---|
| Common‑mode rejection (CMR) | 90 dB typical |
| Supply voltage range (single‑supply) | +2.4 V to +10 V |
| Supply voltage range (dual‑supply) | ±1.2 V to ±6 V |
The AD626 provides selectable gains of 10 and 100, with intermediate gains possible by adding an external resistor to the gain pin.
The device achieves a typical common‑mode rejection of 90 dB.
It can operate from a single supply of +2.4 V to +10 V or from dual supplies of ±1.2 V to ±6 V.