Distributed RC-filters with linearized MOS-transistors in CMOS technology

Two distributed RC filters (a low-pass and a bandpass) that use MOS transistors as distributed RC lines are presented. A scheme for compensating for nonlinearities in the MOSFET is used. Simulation results for a 2- mu m CMOS p-well process (MOSIS) are presented. High programmability is expected from two tuning points: the gain of the voltage amplifier to control the Q of the filters, and the DC bias of the MOSFETs to change omega /sub 0/. SPICE simulation results are presented.<
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