DocumentCode
281544
Title
Current-mode instrumentation amplifier
Author
Toumazou, C. ; Lidgey, F.J. ; Makris, C.A.
Author_Institution
Imperial Coll., London, UK
fYear
1989
fDate
32556
Firstpage
42583
Lastpage
42587
Abstract
Conventional resistive feedback differential amplifiers, including the standard three op-amp instrumentation amplifier, require precisely matched resistors to achieve high CMRR. The circuit described in this paper uses op-amp supply-current sensing techniques to obtain high CMRR performance over a wider bandwidth than conventional designs. A feature of this design is its simplicity and that precisely matched resistors are not required
Keywords
instrumentation amplifiers; operational amplifiers; CMRR; bandwidth; current-mode circuits; instrumentation amplifier; op-amp supply-current sensing techniques; precisely matched resistors;
fLanguage
English
Publisher
iet
Conference_Titel
Current Mode Analogue Circuits, IEE Colloquium on
Conference_Location
London
Type
conf
Filename
197884
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