Robust op-amp integrates input protection against signal excursions

Introduced as the industry's first and most robust operational amplifier to integrate input protection against signal excursions of 32V beyond the supply rails, and 70dB of rejection for electro-magnetic interference (EMI) above 1GHz, Analog Devices' ADA4177 is now available from Digi-Key. The ADA4177-2 dual-channel, precision, low-noise, low-input operational amplifier was designed to address system designers' needs for a sensor interface amplifier with precision, linearity, and environmental immunity for mission critical process control, defence, aerospace, and motor control applications, as well as multi-channel data acquisition instrumentation designs. The ADA4177-2 is typically used in designs where the amplifier inputs are exposed to over-voltage and/or EMI, and the need for improved precision or protection in the signal chain is required. The ADA4177-2 integrates input over-voltage protection (OVP) and EMI filters to protect signal integrity while maintaining system precision and linearity.