Title :
Area-efficient gain- and offset-compensated very-large-time-constant SC biquads
Author :
Ki, Wing-Hung ; Temes, Gabor C.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A signal flow graph analysis of K. Nagaraj´s (1989) very large time-constant biquads based on charge splitting is described. With the addition of offset-storing capacitors, gain- and offset-compensated biquads are obtained. By applying the charge differencing technique, the biquads can be made very area efficient. Simulation results are presented to confirm the analysis
Keywords :
active filters; compensation; graph theory; low-pass filters; switched capacitor filters; charge differencing technique; charge splitting; eighth order lowpass filter; gain compensated biquads; offset-compensated biquads; offset-storing capacitors; signal flow graph analysis; switched capacitor biquads; very large time-constant biquads; Analytical models; Capacitance; Capacitors; Circuits; Dynamic voltage scaling; Filters; Flow graphs; Signal analysis; Signal restoration; Transfer functions;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230313
