OPA132U

The Texas Instruments OPA132U is a high-speed, FET-input operational amplifier designed for excellent DC performance and fast settling times. Its combination of a wide 8MHz bandwidth and a 20V/µs slew rate makes it suitable for demanding audio and data acquisition applications.

Key electrical characteristics include a low input bias current of 50pA maximum, low noise of 8nV/√Hz at 1kHz, and low distortion of 0.00008%. It operates over a wide supply range of ±2.5V to ±18V and features a low offset voltage of 500µV maximum.

This single-channel op amp is available in an 8-pin DIP or SO-8 surface-mount package. Its design is optimized for applications where high source impedance is encountered, providing stable performance under various load conditions, including high capacitive loads. The OPA132U is easy to use and avoids common issues like phase inversion and overload problems found in other FET-input op amps.

Applications include general-purpose, audio, data acquisition, and communications systems, especially those requiring high input impedance. The FET input stage ensures excellent common-mode rejection and maintains low input bias current over a wide input voltage range.