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A classification of multiple‐source feedback filters
Author(s) -
Bowron P.,
Stephenson F. W.
Publication year - 1983
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.4490110304
Subject(s) - topology (electrical circuits) , active filter , all pass filter , computer science , electronic engineering , control theory (sociology) , sensitivity (control systems) , operational transconductance amplifier , bandwidth (computing) , band pass filter , operational amplifier , amplifier , mathematics , low pass filter , engineering , high pass filter , telecommunications , electrical engineering , artificial intelligence , control (management) , combinatorics , voltage
A family of two‐amplifier active‐ RC filters having a single positive and/or negative‐feedback path is identified and evaluated. Four distinct categories emerge with respect to the input summing‐amplifier arrangement. These are embedded in buffered, differential and allpass‐pair networks to reveal many familiar and new configurations. the selectivity and sensitivity to gain‐bandwidth product are then presented in general expressions capable of describing the performance of all such circuits. Conditions for zero first‐order sensitivities and tuning flexibility are then developed.