Op-amp-basic

Which is not the internal circuit of operational amplifier?

• Differential amplifier

• Clamper

• Level translator

• Output driver

The purpose of level shifter in Op-amp internal circuit is to

• Adjust DC voltage

• Increase input resistance

• Provide high gain

• Decrease output resistance

What is the purpose of differential amplifier stage in internal circuit of Op-amp?

• Low gain to differential mode signal

• Low gain to common mode signal

• Cancel common mode signal

• Cancel difference mode signal

Operatonal amplifier is called as

• RC coupled amplifier

• Direct coupled amplifier

• BC coupled amplifier

• AC coupled amplifier

First stage of op amp block diagram is

• Dual input balanced output differential amplifier

• Dual input unbalanced output differential amplifier

• single input balanced output differential amplifier

• single input unbalanced output differential amplifier