Title :
New clock feedthrough cancellation technique for analogue MOS switched-capacitor circuits
Author_Institution :
University of California, Department of Electrical Engineering, Los Angeles, USA
Abstract :
A new technique for minimising DC offsets caused by clock feedthrough in switched-capacitor circuits is presented. Unlike some techniques presented in the past, the clock feedthrough cancellation is dependent only on matching and the common mode rejection ratio of the op-amps. The technique is quite general and can be applied to most switched-capacitor circuits that use differential input op-amps.
Keywords :
active filters; field effect integrated circuits; switched capacitor networks; switched filters; DC offset minimisation; analogue MOS switched capacitor circuits; clock feedthrough cancellation technique; common mode rejection ratio; op-amps; switched capacitor filters;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820028
