Tunable current-mode log-domain universal filter

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dc.contributor.authorPrommee, Pipat
dc.contributor.authorSomdunyakanok, Montri
dc.contributor.authorAngkeaw, Krit
dc.contributor.authorDejhan, Kobchai
dc.date.accessioned2026-08-06T10:00:45Z
dc.date.available2026-08-06T10:00:45Z
dc.date.issued2010-08-31
dc.description.abstractThis paper describes the design of a current-mode universal filter based on log-domain filtering concept. The circuit is a direct realization of a first-order differential equation for obtaining the two integrators loop structure. Lossless integrators are realized by log-domain lossy integrators. The proposed filter comprises only two grounded capacitors and sixteen transistors. Frequency response of the proposed filter can be instantaneously controlled over a very wide frequency range by controlling current. Quality factor is independently controlled by another current. It can be seen that the proposed circuit suites for high-frequency applications. A validated BJT model that used in simulation is operated by a single power supply as low as 2.5V. The wide-range frequency response is controlled over five decades of current controlled. ©2010 IEEE.
dc.identifier.citationIscas 2010 2010 IEEE International Symposium on Circuits and Systems Nano Bio Circuit Fabrics and Systems, 1041-1044, 2010
dc.identifier.doi10.1109/ISCAS.2010.5537356
dc.identifier.other2-s2.0-77955989645
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/3186
dc.sourceIscas 2010 2010 IEEE International Symposium on Circuits and Systems Nano Bio Circuit Fabrics and Systems
dc.subjectElectronically-controlled
dc.subjectHigh-frequency
dc.subjectLog-domain filtering
dc.subjectLow-voltage
dc.subjectUniversal filter
dc.titleTunable current-mode log-domain universal filter
dc.typeConference Paper

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