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A practical near constant bandwidth amplifier
Author(s) -
Maundy Brent,
Gift Stephan,
Westwick David
Publication year - 2010
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.588
Subject(s) - operational amplifier , bandwidth (computing) , amplifier , constant (computer programming) , electronic engineering , computer science , electrical engineering , engineering , telecommunications , programming language
This paper presents a simple near constant bandwidth amplifier constructed from two operational amplifiers. The near constant bandwidth is obtained by reducing the normally high input impedance of the opamp via local and overall feedback. Experimental results obtained using identical opamps and different opamps verify the expected theoretical results. Copyright © 2009 John Wiley & Sons, Ltd.