DocumentCode
2520376
Title
Low gain-error instrumentation amplifier for current sensing
Author
Wang, Jiongming ; Ge, Fuding ; Yang, Shengqi ; Lin, Xinnan ; He, Jin
Author_Institution
Precision Chips Co., Ltd., Wuxi, China
fYear
2010
fDate
15-17 Dec. 2010
Firstpage
1
Lastpage
4
Abstract
This paper presents the design of a low gain-error pseudo rail-to-rail indirect current feedback instrumentation amplifier (In-Amp). In order to reduce the gain error introduced by the input common mode voltage variations, MOS transconductors regulated by specially designed folded-cascoded amplifier are used. Simulated gain error is only about 0.2% with input common mode voltage ranging from half VDD to VDD.
Keywords
electric current measurement; electric sensing devices; instrumentation amplifiers; MOS transconductors; current sensing; gain error; half VDD; input common mode voltage ranging; input common mode voltage variations; low gain-error instrumentation amplifier; rail-to-rail indirect; CMOS integrated circuits; CMOS technology; Educational institutions; Instruments; Irrigation; MOS devices; current sensor; gain error; instrumentation amplifier;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices and Solid-State Circuits (EDSSC), 2010 IEEE International Conference of
Conference_Location
Hong Kong
Print_ISBN
978-1-4244-9997-7
Type
conf
DOI
10.1109/EDSSC.2010.5713692
Filename
5713692
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