Multiple choice

The cascode amplifier is a multistage configuration of

  1. CC-CB

  2. CE-CB

  3. CB-CC

  4. CE-CC
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The CE configuration has high voltage gain as well as high current gain. It performs basic function of amplifications. The CB configuration has lowest $R_i$ and highest $R_0$. It is used as last step to match a very low impedance source and to drain a high impedance load. Thus cascade amplifier is a multistage configuration of CE-CB

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