Title :
Low sensitivity biquads based on doubly loaded LC filters
Author :
Calôba, L.P. ; de Campos, M.L.R. ; de Queiroz, A.C.M.
Author_Institution :
Federal Univ. of Rio de Janeiro, Brazil
Abstract :
The authors discuss the synthesis and design of filters using biquads which simulate doubly loaded maximum gain second-order LC ladders. It is shown that, for approximations with low-Q poles, biquads based on doubly loaded LC filters perform better than the classical ones. Using practically the same number of components they present considerably lower passive sensitivity while allowing active compensation for the op-amp gain bandwidth
Keywords :
active filters; compensation; ladder networks; network synthesis; poles and zeros; sensitivity analysis; active compensation; active filters; all poles filters; doubly loaded LC filters; filter design; filter synthesis; low sensitivity biquads; low-Q poles; op-amp gain bandwidth; passive sensitivity; second-order LC ladders; Active filters; Circuits; Frequency; Operational amplifiers; Passband; Passive filters; Performance gain; Reflection; Symmetric matrices; Transfer functions;
Conference_Titel :
Circuits and Systems, 1991., Proceedings of the 34th Midwest Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-0620-1
DOI :
10.1109/MWSCAS.1991.251951
