Optimized Structures for Switched-Capacitor Filters

摘要

Two methods are presented for designing optimized Nth-order switched-capacitor filters. The first method is based on realizing the filter in the state-space form whereas the second method is based on realizing the filter in a multiple-loop feedback structure. Optimization programs have been developed for minimizing the sensitivity, capacitance ratios and the total capacitance of the resulting filters.