Title :
Dynamic amplifier for m.o.s. technology
Author :
Copeland, M.A. ; Rabaey, Jan M.
Author_Institution :
Katholieke Universiteit, Departement Elektrotechniek, Leuven, Belgium
Abstract :
This letter will demonstrate the feasibility of replacing the static operational amplifiers in switched-capacitor m.o.s. circuits by a simple group of switches that acts as a dynamic amplifier. The method is applicable to m.o.s. and c.m.o.s. active-filter circuits such as the ladder filter and biquad, and promises to save static power and chip area by eliminating static o.a.s, as well as reducing 1/f noise.
Keywords :
active filters; amplifiers; field effect integrated circuits; switched filters; MOS technology; biquad; chip area reduction; dynamic amplifier; ladder filter; reducing 1/f noise; static power reduction; switched capacitor MOS active filter circuits;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790214
