Definition of operational amplifier in US English:
operational amplifier
(also op-amp)
nounˌäpəˈrāSHnəl ˈampləˌfī(ə)r
Electronics An amplifier with high gain and high input impedance (usually with external feedback), used especially in circuits for performing mathematical operations on an input voltage.
Example sentencesExamples
- And with this, their conversation has shifted from op-amps to the upcoming French Open.
- Each detector was connected to a standard 741 integrated circuit operational amplifier and a potentiometer to vary the gain of the amplifier.
- The digital communications circuit includes an impedance controller having an operational amplifier connected to control an impedance presented to the two-wire loop by the interface circuit.
- Specially designed low noise transistors and operational amplifiers have been designed that have a very low noise figure and these are what the design engineers have used in the amplifier stages that are used in the Tower Top Amplifiers.
- Keep in mind that a typical IC operational amplifier may have two-dozen transistors.