Title :
Performance analysis of multiple loop feedback OTA-C filters
Author :
Yichuang Sun ; Fidler, J.K.
Author_Institution :
Dept. of Electron., York Univ., UK
Abstract :
A canonical third-order filter with imaginary axis transmission zeros that can realize the elliptic end inverse Chebyshev characteristics is proposed. An evaluation of performance deviation due to OTA nonidealities including finite input and output impedances and frequency dependence of transconductances is carried out. A method for the computation of dynamic range or the maximum input voltage is given. The assessment techniques and results are else proved to be applicable for general higher-order multiple loop feedback filters.<>
Keywords :
Chebyshev filters; active filters; circuit feedback; circuit noise; circuit stability; elliptic filters; network analysis; operational amplifiers; poles and zeros; OTA nonidealities; canonical third-order filter; dynamic range; elliptic end inverse Chebyshev characteristics; finite input impedances; finite output impedance; frequency dependence; imaginary axis transmission zeros; maximum input voltage; multiple loop feedback OTA-C filters; performance analysis; transconductances; Active filters; Chebyshev filters; Circuit analysis; Circuit noise; Circuit stability; Elliptic filters; Feedback circuits; Operational amplifiers; Poles and zeros;
Conference_Titel :
Digital and Analogue Filters and Filtering Systems, IEE Colloquium on
Conference_Location :
London, UK
