The AD8475 is a precision attenuating amplifier with selectable gain and fully differential structure. It is suitable for driving precision ADCs and other applications. The amplifier features high performance, low power consumption, and robust overvoltage protection.
The AD8475 is a fully differential funnel amplifier that provides precision attenuation of 0.4 or 0.8, common‑mode level shifting, and single‑ended‑to‑differential conversion, with over‑voltage protection up to ±15 V. It operates from a single 3 V–10 V supply or dual ±1.5 V–±5 V supplies and drives high‑performance ADCs with low noise and low power consumption.
The device is offered in 16‑lead LFCSP and 10‑lead MSOP packages and includes selectable gain pins, a VOCM pin for output common‑mode adjustment, and an evaluation board for system testing. Detailed specifications cover bandwidth, slew rate, gain error, and temperature performance.
| Gain Error | 0.02 % |
|---|---|
| Maximum Output Offset | 500 µV |
| CMRR | 90 dB |
The AD8475 offers two selectable gain options: 0.4 V/V and 0.8 V/V.
The maximum output offset is 500 µV.