CMOS translinear circuits for minimum supply voltage

Three basic translinear circuit topologies are modified for use at low supply voltage. They are: (1) the balanced translinear loop; (2) the alternating translinear loop; and (3) the instantaneous-companding integrator. The key to this work is the constructive use of nonsaturated MOS transistors oper...

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Published inIEEE transactions on circuits and systems. 2, Analog and digital signal processing Vol. 47; no. 12; pp. 1560 - 1564
Main Authors Seevinck, E., Vittoz, E.A., du Plessi, M., Joubert, T.H., Beetge, W.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2000
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Analog circuits
Circuit topology
CMOS analog integrated circuits
CMOS digital integrated circuits
CMOS technology
Integrated circuit technology
Low voltage
MOSFETs
Signal processing
Threshold voltage
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Summary:Three basic translinear circuit topologies are modified for use at low supply voltage. They are: (1) the balanced translinear loop; (2) the alternating translinear loop; and (3) the instantaneous-companding integrator. The key to this work is the constructive use of nonsaturated MOS transistors operating in weak inversion. This provides two improvements. First, circuit operation is extended to low supply voltage. Second, accurate realization is enabled since the circuits become immune to MOS body-effect. The proposed techniques are suitable for static and dynamic analog signal processing circuits in mixed-signal chips fabricated in digital CMOS technology and operating at the minimum possible supply voltage.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1057-7130
1558-125X
DOI:10.1109/82.899656