a high-gain direct-coupled amplifier, the response of which may be controlled by negative-feedback circuits externally connected
operational amplifier in American English
noun
Electronics
a high-gain, high-input impedance amplifier, usually an integrated circuit, that can perform mathematical operations when suitably wired
Word origin
[1945–50]This word is first recorded in the period 1945–50. Other words that entered Englishat around the same time include: ergative, individual medley, poison pill, regression analysis, shootout
Examples of 'operational amplifier' in a sentence
operational amplifier
It consisted of a tungsten microhotplate and an on-chip operational amplifier.
Jiaqi Wang, Jun Yu 2015, 'Multifunctional Platform with CMOS-Compatible Tungsten Microhotplate for Pirani, Temperature,and Gas Sensor', Micromachineshttp://www.mdpi.com/2072-666X/6/11/1443. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Results of the original and scaled operational amplifier parameters are presented and analysed.
Karolis Kiela, Marijan Jurgo 2013, 'Operationalamplifier analysis when migrating from 0.18 µm to 65 µm cmos technology/ Operacinių stiprintuvų parametrų tyrimas 0,18 μm ir 65 nm KMOP technologijose',Mokslas: Lietuvos Ateitishttp://journals.vgtu.lt/index.php/MLA/article/view/3821. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Noise models of amplitude limiter and linear operational amplifier are presented.
Paulius Adomavičius 2010, 'Investigation of noise in electronic ultrasonic systems', Mokslas: Lietuvos Ateitishttp://journals.vgtu.lt/index.php/MLA/article/view/10062. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The on-chip operational amplifier provided a bias current for the microhotplate.
Jiaqi Wang, Jun Yu 2015, 'Multifunctional Platform with CMOS-Compatible Tungsten Microhotplate for Pirani, Temperature,and Gas Sensor', Micromachineshttp://www.mdpi.com/2072-666X/6/11/1443. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
An operational amplifier with its differential features eliminates the interference from external signals, including the instant high-frequency noise.
Ying-Yun Chen, Rong-Seng Chang 2015, 'A Study of New Pulse Auscultation System', Sensorshttp://www.mdpi.com/1424-8220/15/4/8712. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)