Analog Devices has introduced a low-distortion instrumentation amplifier which it claims is one of the fastest in amps on the market with a current feedback architecture that offers 15MHz (G=1) bandwidth and a 22V/μs slew rate.

The AD8429’s distortion figure of -130dB will make it suitable for healthcare instrumentation, precision data acquisition equipment and industrial vibration analysis.

Tracing its lineage back to ADI’s AD620 amp, the new high-bandwidth AD8429 in amp has a specified 1nV/√Hz input noise and 45nV/√Hz output noise.

Input bias current of 50nA and the 100μV input offset voltage are significantly lower than the average.

The AD8429 has a 90dB CMRR (common-mode rejection ratio) when operating in dc mode and an 80dB CMRR in ac mode. This will in very small signal acquisition.

The CMRR increases with the gain to provide high signal rejection when it is needed most, and pin configuration is designed to allow the device to maintain high CMRR at high frequencies.

It is packaged in a 4 x 5mm, JEDEC compliant, plastic SOIC_N (small outline package, narrow body) package.

www.analog.com/AD8429