Nanoscale CMOS Technologies

The objective of this book is to comprehensively decode the cascode amplifier which is used to combine the high input resistance and large transconductance achieved in a common source amplifier with the current buffering property and the superior high frequency response of the common gate circuit. The cascode amplifier can be designed to obtain a wider bandwidth but equal DC gain as compared to the common source amplifier. Alternatively, it can be designed to increase the DC gain while leaving the gain-bandwidth product unchanged. We have presented in this book three alternate circuit configurations of feedback biased cascode amplifier, to increase the overall gain and bandwidth simultaneously. The configurations have been exhaustively analysed their workability has been verified by simulations using PSPICE and MATLAB tools.