Tuning of continuous-time filters in the presence of parasitic poles

Author

Kozma, Karen A. ; Johns, David A. ; Sedra, Adel S.

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont., Canada

Volume

40

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

13

Lastpage

20

Abstract

The parasitic effects and tuning limitations that nonideal integrators have on continuous-time filters are discussed. The nonideal integrator is modeled to have finite DC gain and a single nondominant pole. The performance of an adaptive tuning system on tuning a continuous-time filter with nonideal integrators is compared to that of the popular approach of tuning only the poles of a transfer function. Simulation results are presented showing that the adaptive tuning system significantly reduces parasitic effects

Keywords

active filters; adaptive filters; linear network analysis; poles and zeros; transfer functions; tuning; adaptive tuning system; continuous-time filters; finite DC gain; nonideal integrators; parasitic poles; transfer function; tuning limitations; Adaptive filters; Adaptive systems; Frequency; Master-slave; Matched filters; Parasitic capacitance; Poles and zeros; Q factor; Transfer functions; Tuning;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.215339

Filename

215339