DocumentCode
796639
Title
2 V fully-differential SC integrator in standard CMOS
Author
Crapanzano, S. ; Johns, D.A.
Author_Institution
PMC-Sierra Inc., Burnaby, BC, Canada
Volume
31
Issue
23
fYear
1995
fDate
11/9/1995 12:00:00 AM
Firstpage
1995
Lastpage
1996
Abstract
A 2 V fully-differential SC integrator is developed for a standard double-poly CMOS without the need for clock or supply-voltage multiplication. The common mode at the integrator output is set to maximise the signal swing, and the common mode at the input to the OTA is set at the negative rail, maximising the overdrive on all the switches. Two capacitive common-mode adjustment networks are required to alleviate large leakage currents associated with parasitic junction diodes. A novel CMFB technique is proposed. Simulation results are presented for a 1.2 μm CMOS process
Keywords
CMOS analogue integrated circuits; analogue processing circuits; circuit feedback; integrating circuits; operational amplifiers; switched capacitor networks; 1.2 micron; 2 V; CMOS IC; OTA; capacitive common-mode adjustment networks; common-mode feedback; double-poly CMOS process; fully-differential SC integrator; leakage currents; op amp; parasitic junction diodes;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19951379
Filename
490596
Link To Document