Comparative Study Between BJT and MOSFET Implementation of Current-Souce Loads Voltage Amplifiers

Ionel Bostan

Abstract


In this paper is presented a comparative study between commune-emitter and commune-source voltage amplifiers for two types of loads: passive loads and current-sources loads.  Although BJT and MOSFET has different device equations it can be highlighted some surprising similarities in terms of voltage gain expressions.  Actually in the end it is shown that voltage gain can be calculated using only one relation for both type of transistors and both type of loads.

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