DocumentCode
516240
Title
A Micropower CMOS-Instrumentation Amplifier
Author
Degrauwe, M. ; Vittoz, E. ; Verbauwhede, I.
Author_Institution
Centre Suisse d´´Electronique et de Microtechnique CSEM (formerly CEH), Maladiÿre 71, 2000 Neuchâtel 7, Switzerland.
fYear
1984
fDate
0-0 Sept. 1984
Firstpage
31
Lastpage
34
Abstract
A CMOS switched capacitor instrumentation amplifier is presented. Offset is reduced by an auto-correlation technique and effects due to charge injection are attenuated by a special amplifier configuration. The circuit which is realized in a 4 ¿m double poly process has a typical offset (¿) of 370 ¿V, an RMS input referred integrated noise (0-fc /2) of 79 ¿V and consumes only 21 ¿W (fc = 8 kHz, VDD = 3 V).
Keywords
Autocorrelation; Capacitors; Circuits; Differential amplifiers; Instruments; Noise reduction; Signal processing; Switches; Transconductance; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1984. ESSCIRC '84. Tenth European
Conference_Location
Edinburgh, UK
Type
conf
Filename
5467833
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