Low gain-error instrumentation amplifier for current sensing

Low gain-error instrumentation amplifier for current sensing

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...

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Bibliographische Detailangaben
Hauptverfasser: Jiongming Wang, Fuding Ge, Shengqi Yang, Xinnan Lin, Jin He
Format: Tagungsbericht
Sprache:eng
Schlagworte:
CMOS integrated circuits
CMOS technology
current sensor
Educational institutions
gain error
instrumentation amplifier
Instruments
Irrigation
MOS devices
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Beschreibung
Zusammenfassung: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.
DOI:10.1109/EDSSC.2010.5713692