MOS switched-capacitor filters
Brodersen, R.W.
Gray, P.R.
Hodges, D.A.
This paper appears in: Proceedings of the IEEE
Publication Date: Jan. 1979
Volume: 67,
Issue: 1
On page(s): 61- 75
ISSN: 0018-9219
Current Version Published: 2005-06-28
Abstract
In the past several years, much progress has been made in bringing the economies of integrated-circuit technology to bear on the realization of voiceband frequency selective filters. This paper will review one approach to this problem, the use of switched-capacitor techniques. The paper emphasizes the practical aspects of switched-capacitor filter design under the constraints imposed by MOS integrated-circuit technology. The basic operation of switched-capacitor filters is reviewed, followed by a discussion of the properties of the various circuit building blocks in MOS technology. Finally, a summary of several filter organizations which appear to be well suited to switched-capacitor implementation is presented.
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