Voltage-Mode Universal Biquadratic Filter Using Single Current-Feedback Amplifier

Jiun-Wei HORNG  Chao-Kuei CHANG  Jie-Mei CHU  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E85-A   No.8   pp.1970-1973
Publication Date: 2002/08/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Circuit Theory
current-feedback amplifier (CFA),  universal biquadratic filter,  

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A voltage-mode universal biquadratic filter using single current-feedback amplifier (CFA), two capacitors and three resistors is presented. The new circuit has four inputs and one output and can realize all the standard filter functions, that is, lowpass, bandpass, highpass, notch and allpass filters, without changing the circuit topology. The use of only one current-feedback amplifier simplifiers the configuration.