Title :
M.O.S. switched-capacitor amplifiers
Author :
Viswanathan, T.R. ; Faruque, S.M. ; Singhal, Kushagra ; Vlach, J.
Author_Institution :
University of Waterloo, Faculty of Engineering, Waterloo, Canada
Abstract :
Switched-capacitor voltage gain elements, in which the gain is precisely controlled by the ratio of two capacitors, are presented. The voltage gain is obtained by means of a transconductance element operating into a switched-capacitor resistor. Circuit configurations use a single operational amplifier or a unity-gain buffer. In some of these configurations, the offset voltage of the operational amplifier or the buffer is not amplified.
Keywords :
field effect integrated circuits; linear integrated circuits; operational amplifiers; MOS integrated circuits; field effect integrated circuits; offset voltage; operational amplifier; switched capacitor voltage gain; transconductance; unity gain buffer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790451
