Title :
Finite-gain-insensitive circulating-delay type pseudo-N-path filter
Author :
Betts, A.K. ; Taylor, J.T.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll., London, UK
Abstract :
A novel circulating-delay switched-capacitor (SC) pseudo-N-path (PNP) filter is described which has low sensitivity to finite amplifier gain. The circuit exploits the narrowband characteristic of the PNP filter to predict its output voltage a number a cycles in advance and hence give accurate error compensation.
Keywords :
error compensation; switched capacitor filters; PNP filter; circulating-delay type pseudo-N-path filter; error compensation; finite amplifier gain; in-band clock feedthrough; in-band mirror components; low sensitivity; narrowband characteristic; output voltage; response distortion; switched capacitor filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19901256
