Dual-output current differencing transconductance amplifiers-based current-mode sinusoidal quadrature oscillators

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dc.contributor.authorSummart, Saksit
dc.contributor.authorThongsopa, Chanchai
dc.contributor.authorJaikla, Winai
dc.date.accessioned2026-08-06T10:09:03Z
dc.date.available2026-08-06T10:09:03Z
dc.date.issued2014-01-01
dc.description.abstractThis paper presents three current-mode quadrature oscillator (QO) circuits based on dual-output current differencing transconductance amplifier (DO-CDTA) which is designed from block diagram. The proposed circuits consist of two DO-CDTAs and two grounded capacitors. The circuits can provide two sinusoidal output currents with 90° phase difference. The condition of oscillation (CO) can be adjusted independently from the frequency of oscillation (FO) by adjusting the bias currents of the DO-CDTA. The proposed circuits have high output impedance appropriate for cascade connection application in current mode which is capable to directly drive load. The circuits use only grounded capacitors without any external resistor which is very appropriate for further development into an integrated circuit. Moreover, the oscillator circuits can also adjust amplitude of the output signal. The results of PSPICE simulation program are corresponding to the theoretical analysis. © 2014 World Scientific Publishing Company.
dc.identifier.citationJournal of Circuits Systems and Computers, 23(6), 2014
dc.identifier.doi10.1142/S0218126614500844
dc.identifier.issn02181266
dc.identifier.other2-s2.0-84901237819
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/5548
dc.sourceJournal of Circuits Systems and Computers
dc.subjectBlock diagram
dc.subjectCurrent-mode
dc.subjectDO-CDTA
dc.subjectQuadrature oscillator
dc.titleDual-output current differencing transconductance amplifiers-based current-mode sinusoidal quadrature oscillators
dc.typeArticle

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