Title :
Push-pull current circuit for biasing CMOS amplifiers with rail-to-rail input common-mode range
Author :
Duque-Carrillo, J.F. ; Perez-Aloe, R. ; Morillo, A.
Author_Institution :
Dept. of Electron. & Electronomec., Univ. de Extremadura, Badajoz, Spain
Abstract :
A push-pull current circuit for biasing CMOS amplifiers with rail-to-rail input common-mode range is presented. By means of a feedback action, the circuit avoids the large magnitude deviations inherent to this type of amplifier and thus facilitates their optimisation and compensation. Simulated and experimental results obtained from a fabricated 2 mu m CMOS test chip are reported.
Keywords :
CMOS integrated circuits; amplifiers; feedback; linear integrated circuits; 2 micron; CMOS amplifiers; biasing; compensation; feedback action; monolithic IC; optimisation; push-pull current circuit; rail-to-rail input common-mode range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911315
