Compensation for amplifier finite bandwidth in the design of switched capacitor networks

Author

Fahmy, M.F. ; Makkey, M.Y. ; Sobhy, H.I.

Author_Institution

Assiut Univ., Egypt

fYear

1988

fDate

7-9 June 1988

Firstpage

2471

Abstract

A method is described for analyzing general switched-capacitor networks with nonideal amplifiers. The finite bandwidths of the amplifiers distort the response of the network from the required response. It is shown that by readjusting the poles and zeros of the transfer function the required response can be accurately restored. In such cases, readjusting the clock frequency and/or the phase timing will enable the designer to obtain a final response which is very close to the desired one. The described optimization procedure ensures the stability of the designed network. Illustrative examples are presented.<>

Keywords

active networks; compensation; network analysis; operational amplifiers; poles and zeros; switched capacitor networks; time-domain analysis; amplifier finite bandwidth; compensation; nonideal amplifiers; optimization procedure; poles and zeros; response distortion; response-restoration; stability; switched capacitor networks; time domain analysis; transfer function; Bandwidth; Clocks; Equations; Frequency response; Intelligent networks; Poles and zeros; Stability; Switched capacitor networks; Transfer functions; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1988., IEEE International Symposium on

Conference_Location

Espoo, Finland

Type

conf

DOI

10.1109/ISCAS.1988.15443

Filename

15443