What is Cascode Amplifier? The Cascode Amplifier is the combination of the common source (Common Emitter for BJT) and the Common Gate Stage (Common Base for BJT). As shown in Fig. 1, the input is applied to the common source amplifier. Fig.1 Cascode Amplifier The transistor M1 is also known as amplifying transistor. And the … Read moreCascode Amplifier using MOSFET Explained
Here is the PDF link of the derivation for the expressions of input impedance, the output impedance, and the voltage gain of the Common Gate (CG) Amplifier, considering the effect of finite output resistance (ro) of the MOSFET.