Title :
New multifunction biquadratic filter circuit with inherently stable Q-factor
Author :
Brown, Leslie ; Sedra, A.S.
Author_Institution :
University of Toronto, Department of Electrical Engineering, Toronto, Canada
Abstract :
A new 3-amplifier biquad of the 2-integrator-loop type is introduced. Like the Akerberg-Mossberg circuit, the new circuit exhibits extremely stable Q-factor if the amplifiers have good matching and tracking properties. In addition, the new circuit provides simultaneous realisation of the three basic filtering functions, and hence is suitable for use as a universal filtering module.
Keywords :
Q-factor; active filters; Akesberg Mossberg circuit; inherently stable Q-factor; multifunction biquadratic filter circuit; three amplifier biquad; two integrator loop type; universal filtering module;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770507
