Journal
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
Volume 45, Issue 5, Pages 595-612Publisher
WILEY
DOI: 10.1002/cta.2250
Keywords
fractional-order filters; fractional-order circuits; generalized filters; CMOS analog integrated circuits
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Funding
- Research Committee of the University of Patras [E.029]
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Novel topologies of fractional-order generalized filters are introduced in this paper. These offer the following benefits: (1) realization of lowpass, highpass, bandpass, allpass, or bandstop filter functions by the same topology; (2) resistorless realizations; (3) electronic adjustment of their frequency characteristics as well as their order; and (4) employment of only grounded capacitors. All the above have been achieved using Operational Transconductance Amplifiers as active elements and appropriate multi-feedback topologies. The behavior of the proposed designs is verified through simulation results using the Cadence IC design suite and the Design Kit provided by the Austrian Micro Systems 0.35-mu m complementary metal-oxide-semiconductor process. Copyright (c) 2016 John Wiley & Sons, Ltd.
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