DocumentCode
910030
Title
A switched-capacitor delta-sigma modulator with reduced sensitivity to op-amp gain
Author
Hurst, Paul J. ; Levinson, Roger A. ; Block, David J.
Author_Institution
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
Volume
28
Issue
6
fYear
1993
fDate
6/1/1993 12:00:00 AM
Firstpage
691
Lastpage
696
Abstract
Low operational amplifier (op-amp) gain can degrade the performance of a switched-capacitor delta-sigma modulator (ΔΣM). A ΔΣM that incorporates a new gain-compensated switched-capacitor integrator is described. The resulting ΔΣM topology has reduced sensitivity to op-amp gain. Simulation and measurement results for an experimental ΔΣM that demonstrate the advantages of the new architecture are presented
Keywords
compensation; delta modulation; integrating circuits; modulators; operational amplifiers; switched capacitor networks; SC circuit; delta-sigma modulator; gain compensated integrator; op-amp gain; operational amplifier; switched-capacitor; Baseband; Capacitors; Circuits; Degradation; Delta modulation; Operational amplifiers; Performance gain; Quantization; Signal to noise ratio; Voltage;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/4.217985
Filename
217985
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