DocumentCode
974003
Title
Ladder-simulation switched-capacitor filters with inductor loops
Author
Gregorian, Roubik ; Fan, Shih-Chung
Author_Institution
American Microsystems Inc., Santa Clara, USA
Volume
17
Issue
21
fYear
1981
Firstpage
786
Lastpage
788
Abstract
In ladder-simulation switched-capacitor filters, offset voltages of the op-amps can cause the output simulating inductor currents to build up if the LC prototype contains an inductor loop. This problem is eliminated by a novel technique where the sum of inductor currents flowing into each node is simulated by one op-amp output.
Keywords
active filters; ladder networks; operational amplifiers; switched capacitor networks; switched filters; inductor loops; ladder-simulation; operational amplifier offset voltage; output simulating inductor currents; switched-capacitor filters;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19810551
Filename
4246031
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