A New Class of MOSFET-C Multifunction Filters

A new class of MOSFET-C filters based on the simulation of parallel C-D impedance is presented. The core circuit is based on the Ford-Girling equivalent realization of parallel C-D impedance. Using this approach, systematic derivation of two current-mode and a voltage-mode MOSFET-C multifunction biquads are obtained. Simulation results verifying the feasibilities of the derived circuits are presented.