hie
In transistors, current gain plays a significant role. In h parameters, one of the parameters is hfe which is current gain. It is easier if the parameters chosen represent some significant properties of the device. Some other parameters of importance in transistors are input resistance hie and output resistance 1/hoe.So it makes sense to analyse transistors with h parameters.
design and implementation of a buffer circuit using operational amplifier
operational amplifier
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An instrumentation amplifier is made out of 2 or 3 operational amplifiers.
In transistors, current gain plays a significant role. In h parameters, one of the parameters is hfe which is current gain. It is easier if the parameters chosen represent some significant properties of the device. Some other parameters of importance in transistors are input resistance hie and output resistance 1/hoe.So it makes sense to analyse transistors with h parameters.
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
analog device
operational amplifier
Op amps stands for operational amplifier. An operational amplifiers is a high gain voltage amplifier that requires a differential input and produces single outputs.