
Demystifying Switched-Capacitor Circuits
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that is essential for accurate charge transfer. For the same reason, the offset voltage
at the input terminal of the UGB is equally problematic. At the time of this writing,
the appropriate solution to the preceding issues with respect to the UGB-based SC
circuit is not yet available, but the reader can fi nd a few useful discussions in
[26][28].
Appendix 4.1
Part I: Filter Specifi cation
% ————– original specifications of the filter —————-
clear all;
close all;
Fp = 1.5e6; % passband edge frequency [Hz]
Fs = 3.0e6; % stopband edge frequency [Hz]
Fc = 3.0e7; % sampling frequency [Hz]
Wp = 2*Fp/Fc; % passb ...