The OPA455 is a precision power amplifier capable of operating over a very wide supply range of ±6 V to ±75 V, with an input common-mode range that extends to within a few volts from each rail. This amplifier is composed of an internal differential input amplifier stage, followed by a voltage amplifier, and finally, a high-current output stage. This device is designed to avoid phase inversion problems that are typically found in similar op amps. The OPA455 is unity-gain stable, and comes in an SO PowerPAD™ package.