Title :
High-CMRR CMOS current output stage
Author :
Centurelli, E. ; Pennisi, S. ; Trifiletti, A.
Author_Institution :
Dipt. di Ingegneria Elettronica, Univ. di Roma ´´La Sapienza´´, Italy
fDate :
6/26/2003 12:00:00 AM
Abstract :
A novel current-mode output stage is presented which achieves high CMRR owing to an auxiliary high-gain feedback loop. Compared to the traditional solution, an approximately doubled transconductance is also obtained. SPICE simulations using the model parameters of a 0.8 μm CMOS process are found in remarkable agreement with expected results.
Keywords :
CMOS analogue integrated circuits; SPICE; circuit simulation; feedback amplifiers; operational amplifiers; 0.8 micron; CMOS; CMRR; SPICE simulations; auxiliary high-gain feedback loop; current operational amplifiers; current output stage; model parameters; transconductance;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030602
