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Single transistor RC‐only second‐order allpass filters
Author(s) -
Maundy B. J.,
Elwakil A. S.,
Belostotski L.,
Herencsar N.
Publication year - 2020
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.2721
Subject(s) - all pass filter , topology (electrical circuits) , transistor , filter (signal processing) , electronic engineering , cmos , network synthesis filters , active filter , rc circuit , electrical impedance , mathematics , control theory (sociology) , computer science , low pass filter , engineering , electrical engineering , capacitor , high pass filter , control (management) , voltage , artificial intelligence
Summary In this letter, all possible single transistor RC‐only second‐order allpass filters obtainable from a four impedance common‐source topology are reported. It is shown that there are only seven such filters with only one of them being a minimum component canonical 2R‐2C filter. Two of the found filters are designed and simulated in a 65‐nm CMOS process.