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operational amplifier

American

noun

Electronics.

a high-gain, high-input impedance amplifier, usually an integrated circuit, that can perform mathematical operations when suitably wired.

operational amplifier British

noun

a high-gain direct-coupled amplifier, the response of which may be controlled by negative-feedback circuits externally connected

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of operational amplifier

First recorded in 1945–50

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023