A method for frequency-domain analysis of switched-capacitor filters

In this paper, a new method is proposed for the frequencyresponse evaluations of switched-capacitor networks of any topology. It relies on reducing the
z
-transform impulse response of the SCN into a rational function form. Closed-form expressions for the coefficients of the rational expansion, as well as its degree, are given. Illustrative examples showing the merits of this new approach over the existing one .are also included.