DocumentCode
2252619
Title
Very low-voltage fully differential amplifier for switched-capacitor applications
Author
Dessouky, M. ; Kaiser, A.
Author_Institution
ASIM, Paris, France
Volume
5
fYear
2000
fDate
2000
Firstpage
441
Abstract
A fully differential opamp suitable for very-low voltage switched-capacitor circuits in standard CMOS technologies is introduced. The proposed two stage opamp needs a simple low voltage CMFB switched-capacitor circuit only for the second stage. Due to the reduced supply voltage, the CMFB circuit is implemented using boot-strapped switches. Minor modifications allow to use chopper stabilization for flicker noise reduction. Two different compensation schemes are discussed and compared using an example for 1 V operation of the amplifier
Keywords
CMOS analogue integrated circuits; bootstrap circuits; low-power electronics; operational amplifiers; switched capacitor networks; 1 V; CMOS technology; bootstrapped switch; chopper stabilization; compensation; flicker noise; fully differential operational amplifier; low-voltage CMFB switched capacitor circuit; CMOS process; CMOS technology; Clocks; Differential amplifiers; Operational amplifiers; Rail to rail operation; Switched capacitor circuits; Switches; Switching circuits; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location
Geneva
Print_ISBN
0-7803-5482-6
Type
conf
DOI
10.1109/ISCAS.2000.857466
Filename
857466
Link To Document