Active Elements for Analog Signal Processing: Classification, Review, and New Proposals
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In the paper, an analysis of the state-of-the-art of active elements for analog signal processing is presented which support – in contrast to the conventional operational amplifiers – not only the voltage-mode but also the current- and mixed-mode operations. Several problems are addressed which are associated with the utilization of these elements in linear applications, particularly in frequency filters. A methodology is proposed which generates a number of fundamentally new active elements with their potential utilization in various areas of signal processing.
KeywordsActive element, current conveyor, operational amplifier, OTA, CDBA, CDTA, filter
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2008, vol. 17, č. 4, s. 15-32. ISSN 1210-2512
- 2008/4