DocumentCode
1514563
Title
Operational amplifier input stage robust to EMI
Author
Fiori, F.
Author_Institution
Dipartimento di Elettronica, Politecnico di Torino, Italy
Volume
37
Issue
15
fYear
2001
fDate
7/19/2001 12:00:00 AM
Firstpage
930
Lastpage
931
Abstract
Radio frequency interference superimposed on the input nominal signals of an operational amplifier excites distortion phenomena in active nonlinear devices. In actual differential input stages, interference generates even-order harmonics and in particular DC offset voltage. A new frequency selective input differential stage is presented, which minimises the generation of DC offset voltage due to distortion phenomena
Keywords
BiCMOS analogue integrated circuits; harmonic distortion; operational amplifiers; radiofrequency interference; BiCMOS process; DC offset voltage; EMI robustness; RF interference; active nonlinear devices; distortion phenomena; even-order harmonics; folded cascode; frequency selective input differential stage; mixer effect; operational amplifier input stage; parasitic elements;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20010651
Filename
937282
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