Title :
Reactive loop elimination and the use of special approximations in the design of OTA-C filters
Author :
De Queiroz, Antônio Carlos M ; Calôba, Luiz P.
Author_Institution :
Programa de Engenharia Mecanica, Univ. Fed. do Rio de Janeiro, Brazil
Abstract :
The use of special approximations in the design of passive filters to be used as prototypes for OTA-C realizations allows the elimination of multiple loops of reactive elements that appear in usual LC ladder filters with finite transmission zeros. This leads to more efficient active simulations, where problems with floating capacitors, DC or high-frequency instability, or limited operating frequency are avoided
Keywords :
active filters; equivalent circuits; ladder filters; linear network synthesis; operational amplifiers; poles and zeros; LC ladder filters; OTA-C filter design; Thevenin equivalent circuit; approximations; finite transmission zeros; inductor loop elimination; passive filter prototype design; reactive loop elimination; Active filters; Band pass filters; Capacitors; Circuit simulation; Frequency; Inductors; Low pass filters; Passive filters; Prototypes; Virtual prototyping;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.510346
