OP177G

The OP177G is an ultraprecision operational amplifier from Analog Devices, offering high-performance characteristics for demanding applications. It features an ultralow offset voltage of 10 μV max at room temperature and 20 μV max over the full military temperature range (–55°C to +125°C). The exceptional offset voltage drift of 0.1 μV/°C max eliminates the need for external adjustments, enhancing system accuracy.

This operational amplifier boasts excellent open-loop gain of 12 V/μV, maintained over the full ±10 V output range. It also provides a high CMRR of 130 dB min and PSRR of 120 dB min, with a low supply current of 2.0 mA max. These specifications ensure accurate performance in high closed-loop gain applications.

The OP177G is designed as a cost-effective alternative to chopper-stabilized amplifiers, offering similar performance without the associated drawbacks like high noise or large physical size. It is available in various packages, including 8-pin DIP and SOIC, suitable for standard precision op-amp sockets.

Key electrical characteristics include low input bias current, low input noise voltage, and low input noise current. The high input resistance (differential-mode and common-mode) further contributes to its precision performance.