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operational amplifier

noun

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


operational amplifier

noun

  1. 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


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Word History and Origins

Origin of operational amplifier1

First recorded in 1945–50

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operationaloperational calculus