The AD626 is a low cost, true single-supply differential amplifier designed for amplifying and low-pass filtering small differential signals.
The AD626 is a low‑cost, true single‑supply differential amplifier designed for amplifying and low‑pass filtering small differential voltages while tolerating large common‑mode voltages. It offers selectable gains of 10 or 100, low input offset voltage, and a typical CMR of 90 dB.
The device is available in 8‑lead plastic DIP and SOIC packages, operates from +2.4 V to +10 V (single‑supply) or ±1.2 V to ±6 V (dual‑supply), and provides an output swing of 0.03 V to 4.9 V. Typical applications include current sensing, bridge circuits, and pressure‑transducer interfaces.
| Gain (selectable) | 10, 100 |
|---|---|
| Common‑Mode Rejection | 90 dB typ |
| Supply Voltage Range | +2.4 V to +10 V (single‑supply) |
| Output Voltage Swing | 0.03 V to 4.9 V |
The AD626 provides selectable gains of 10 and 100, set by connecting Pin 7 to ground for gain 100 or leaving it open for gain 10.
The device achieves a typical common‑mode rejection ratio of about 90 dB.
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 AD626 is available in an 8‑lead plastic DIP package and an 8‑lead SOIC package.