DocumentCode
824540
Title
Compact power-efficient class-AB CMOS exponential voltage to voltage converter
Author
De La Cruz-Blas, C.A. ; López-Martín, A.J. ; Ramirez-Angulo, J.
Author_Institution
Dept. of Electr. & Electron. Eng., Public Univ. of Navarra, Spain
Volume
42
Issue
3
fYear
2006
Firstpage
127
Lastpage
128
Abstract
A novel implementation of a rail-to-rail exponential voltage to voltage converter is presented. It is based on a pseudo-exponential approximation that is easily achieved by the nonlinear currents of a class-AB transconductor. Measurement results for a 0.5 μm CMOS technology show a 52 dB output voltage range with linearity error less than ±2 dB using a dual supply voltage of ±750 mV. The power dissipation is less than 40 μW.
Keywords
CMOS integrated circuits; convertors; operational amplifiers; 0.5 micron; 750 mV; class-AB CMOS voltage to voltage converter; class-AB transconductor; dual supply voltage; exponential voltage to voltage converter; nonlinear currents; pseudo-exponential approximation; rail-to-rail voltage to voltage converter;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20063667
Filename
1593281
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