The AD8202 from Analog Devices is a single-supply difference amplifier for amplifying and low-pass filtering small differential voltages in the presence of a large common-mode voltage. Its input common-mode range extends from −8 V to +28 V at a typical 5 V supply, and it is offered in die and packaged form.
The datasheet provides single-supply specifications, absolute maximum ratings, pin configuration and function descriptions, typical performance characteristics, theory of operation, and applications. Application sections cover current sensing, gain adjustment, gain trim, low-pass filtering, high-line current sensing with LPF and gain adjustment, and driving charge redistribution ADCs.
| Supply voltage range | 3.5 V to 12 V |
|---|---|
| Common-mode voltage range | −8 V to +28 V at a 5 V supply |
| Operating temperature range | −40°C to +125°C |
| Typical voltage offset | ±1 mV |
| Typical gain drift | 1 ppm/°C |
| Minimum CMRR | 80 dB from dc to 10 kHz |
| Initial system gain | 20 V/V |
At a 5 V supply, the input common-mode voltage range extends from −8 V to +28 V.
The AD8202 operates over a supply voltage range of 3.5 V to 12 V.
The AD8202 has a typical voltage offset of ±1 mV.
The AD8202 is a single-supply difference amplifier for amplifying and low-pass filtering small differential voltages in the presence of a large common-mode voltage.