DocumentCode
2732972
Title
A scheme for the KHN state variable filter to improve its high frequency performance
Author
Báez-lópez, David ; Espinosa, Guillermo ; Jurez, L.I.V. ; Hernández, Fernando Mendoza ; Romero, Genaro Olivera ; Ramirez, Juan Manuel
Author_Institution
Dept. de Ingenieria Electron., Univ. de las Americas-Puebla, Mexico
fYear
1998
fDate
9-12 Aug 1998
Firstpage
444
Lastpage
447
Abstract
The state variable filter, also known as the KHN filter, is well known for its low sensitivities to the passive elements. However, its sensitivities to the finite gain bandwidth product of the operational amplifiers limit its performance for high frequencies. This modification consists in providing a positive feedback in the summing amplifier. Simulation of the proposed scheme and a comparison of the results with the conventional KHN filter is presented
Keywords
active filters; circuit feedback; operational amplifiers; sensitivity analysis; summing circuits; KHN state variable filter; finite gain bandwidth product; high frequency performance; operational amplifiers; passive element sensitivities; positive feedback; summing amplifier; Filters; Frequency;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on
Conference_Location
Notre Dame, IN
Print_ISBN
0-8186-8914-5
Type
conf
DOI
10.1109/MWSCAS.1998.759526
Filename
759526
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