DocumentCode
412899
Title
Current output stage with improved CMRR
Author
Centurelli, F. ; Pennisi, S. ; Trifiletti, A.
Author_Institution
Dipt. di Ingegncria Elettronica, Univ. di Roma, Italy
Volume
2
fYear
2003
fDate
14-17 Dec. 2003
Firstpage
543
Abstract
A technique to increase the common-mode rejection ratio of traditional current output stage is presented. The solution exploits an auxiliary high-gain feedback loop which also approximately doubles the differential transconductance. SPICE simulations using the model parameters of a 0.8-μm CMOS process arc found in remarkable agreement with expected results.
Keywords
CMOS analogue integrated circuits; SPICE; feedback amplifiers; operational amplifiers; CMOS process; SPICE simulations; auxiliary high-gain feedback loop; common-mode rejection ratio; complementary source-coupled pairs; current operational amplifiers; current output stage; differential transconductance; model parameters; CMOS process; Capacitors; Circuits; Differential amplifiers; Feedback loop; Operational amplifiers; SPICE; Semiconductor device modeling; Transconductance; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on
Print_ISBN
0-7803-8163-7
Type
conf
DOI
10.1109/ICECS.2003.1301842
Filename
1301842
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