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What is operational amplifier? Write the properties of ideal op-amp and also draw its AC equivalent circuit.

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What is operational amplifier? Write the properties of ideal op-amp and also draw its AC equivalent circuit.

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The operational amplifier is a direct-coupled high gain high bandwidth amplifier

Characteristics Ideal op-amp
open loop gain ∞
Input impedance ∞
Output impedance 0
Bandwidth ∞
CMRR ∞
Stew rate ∞
Input offset voltage 0

 

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