Title :
High-Q SC biquad with a minimum capacitor spread
Author :
Fischer, Georg ; Moschytz, G.S.
Author_Institution :
Swiss Federal Institute of Technology, Institute of Telecommunications, Zurich, Switzerland
Abstract :
Realising SC biquads with high Q values normally results in a high capacitor spread. This means, for MOS circuits, a correspondingly large increase of the total chip area. In the letter, we describe a circuit that allows the realisation of high-Q filters with a minimum capacitor spread resulting in more accurate capacitor ratios and a small overall chip area.
Keywords :
Q-factor; switched capacitor networks; switched filters; Q-factor; filters; minimum capacitor spread; switched capacitor biquad;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820743
