A Fully Balanced Fifth-Order Low-Pass Chebyshev Filter Based On Quasi-Floating Gate Transistors

Abstract

A CMOS fully differential integrator based on quasi-floating gate technique is proposed. Its detailed structure, transfer characteristic and integral performance are analyzed. Using the integrator circuit, a fully balanced fifth-order Chebyshev low-pass filter, which have a 2MHz cutoff frequency and 346.1μW power dissipation, is designed by the RLC ladder simulation method. Theoretical analysis and the feasibility of the filter have been verified by the simulation results.