Premium
On the restrictions of the sensitivities in single‐amplifier biquadratic active filters
Author(s) -
Leenaerts Domine M. W.,
Mladenov Valeri M.
Publication year - 1995
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.4490230307
Subject(s) - digital biquad filter , active filter , control theory (sociology) , sensitivity (control systems) , dimension (graph theory) , amplifier , mathematics , filter (signal processing) , stability (learning theory) , topology (electrical circuits) , low pass filter , computer science , electronic engineering , engineering , bandwidth (computing) , telecommunications , electrical engineering , pure mathematics , control (management) , combinatorics , voltage , artificial intelligence , computer vision , machine learning
The paper deals with the bounds on the sensitivities of the poles and the quality factor to the gain of the amplifier in biquadratic second‐order active filters. to ensure stability, the Fialkow‐Gerst conditions are taken into account. It is not possible to realize biquad filters with a better gain‐sensitivity product not obeying the derived conditions. the result can be applied in filter synthesis and will give the designer more freedom to dimension the filter structure and its component values.