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Active RC impedances revisited
Author(s) -
Serrano Luis,
Carlosena Alfonso
Publication year - 1997
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/(sici)1097-007x(199707/08)25:4<289::aid-cta971>3.0.co;2-8
Subject(s) - electrical impedance , electronic circuit , electronic engineering , inductor , equivalent circuit , amplifier , operational amplifier , computer science , network analysis , perspective (graphical) , electrical engineering , engineering , topology (electrical circuits) , cmos , voltage , artificial intelligence
The aim of this paper is to review the synthesis, analysis and design of active RC impedances. First of all, major gaps in this classical research topic are identified. Second, a synthesis procedure is outlined to generate op‐amp‐based circuits which can simulate several classes of impedances of practical interest. From the resulting classification, all circuits are analysed from a perspective wider than those normally used in previous works, yielding some new interesting design conditions. A method is suggested to convert ladder passive prototypes containing either grounded inductors or FDNRs into MOSFET‐C equivalent circuits using some of the new structures obtained. Finally, the use of current feedback amplifiers instead of op amps is considered. Experimental results corroborating all our theoretical predictions are incorporated in the work. © 1997 John Wiley & Sons, Ltd.