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Usually output of an amplifier is a voltage ,...but in case of Operational Transconductance Amplifier ,Iout (current ) is the output. This feature, makes it useful for Electronic control of amplifier gain .
design and implementation of a buffer circuit using operational amplifier
Originally such an amplifier did mathematical functions.
The LM358 is an operational amplifier.
It has several but one of the main ones is that it has built in frequency compensation, which its predecessor the 709 operational amplifier did not.
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operational amplifier
1.differential amplifier 2.operational amplifier 3.instrumentation amplifier 4.chopper amplifier 5.isolation amplier
operational amplifier
analog device
Op amps stands for operational amplifier. An operational amplifiers is a high gain voltage amplifier that requires a differential input and produces single outputs.