Realization of leapfrog filters using current differential buffered amplifiers

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dc.contributor.authorTangsrirat, Worapong
dc.contributor.authorSurakampontorn, Wanlop
dc.contributor.authorFujii, Nobuo
dc.date.accessioned2026-08-06T09:52:04Z
dc.date.available2026-08-06T09:52:04Z
dc.date.issued2003-01-01
dc.description.abstractIn this paper, is shown an approach to realize leapfrog structures obtained from proto-type passive RLC ladder filters using current differencing buffered amplifiers (CDBA) as active elements. The use of the CDBA's provides advantages that the realization procedure is simplified and the number of active components required is reduced. The approach is quite suitable for the realization of band-pass ladder filters, which generally requires a complicated structure to simulate LC series and/or parallel resonant branches by the conventional opamp-based leapfrog filters. A simple circuit configuration of the CDBA suitable for high frequency and low power supply voltage applications is also presented. As design examples, a fifth-order Butterworth low-pass ladder filter and a sixth-order Chebyshev bandpass ladder filter are designed. The effectiveness and the correctness of the proposed approach and the characteristics of the proposed filters are verified and examined through computer simulation.
dc.identifier.citationIEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences, E86-A(2), 318-326, 2003
dc.identifier.issn09168508
dc.identifier.other2-s2.0-0041470067
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/689
dc.sourceIEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences
dc.subjectActive filter
dc.subjectCDBA
dc.subjectCurrent differencing buffered amplifier
dc.subjectLeapfrog filter
dc.subjectLow-voltage circuit
dc.titleRealization of leapfrog filters using current differential buffered amplifiers
dc.typeArticle

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