Programmable gain amplifier in a 10-MSOP — what it is for
The AD8271BRMZ is a single-channel programmable gain amplifier (PGA) from Analog Devices, built for applications where you need to switch gain without swapping resistors or using a separate mux. It delivers a 30 V/µs slew rate and 15 MHz gain-bandwidth product, with rail-to-rail output swing — enough headroom for precision signal conditioning in industrial control loops, data acquisition front-ends, and sensor interfaces.
A 30 V/µs slew rate means this PGA can track fast transients without slew-induced distortion. For a 10 V peak-to-peak output swing, the full-power bandwidth works out to roughly 480 kHz — enough for multiplexed ADC inputs, high-speed data acquisition, or driving a downstream ADC driver. The 15 MHz small-signal bandwidth gives you gain flatness out past a few hundred kHz, which matters when you are scaling a 100 kHz sensor signal and don't want gain roll-off eating your accuracy.
Rail-to-rail output and 100 mA drive
Input bias current sits at 500 nA and input offset at 300 µV, both typical for a PGA in this class — fine for 12-bit systems, but you will want to budget the offset if you are targeting 16-bit accuracy at low gains.