Voltage differencing gain amplifier-based sinusoidal quadrature oscillator using only two grounded capacitors

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dc.contributor.authorChannumsin, Orapin
dc.contributor.authorTangsrirat, Worapong
dc.date.accessioned2026-08-06T10:22:59Z
dc.date.available2026-08-06T10:22:59Z
dc.date.issued2019-01-01
dc.description.abstractBackground: This article describes the circuit construction of the sinusoidal quadrature oscillator using two Voltage Differencing Gain Amplifiers (VDGAs) as active devices. Methods: Since the presented oscillator circuit uses only two external grounded capacitors as pas-sive elements, it is quite suitable for monolithic integration point of view. The condition of oscilla-tion and the frequency of oscillation are non-interactive, and can be controlled electronically by tun-ing two separate biasing currents. Non-ideal analysis and sensitivity performance are also discussed. Results: The feasibility of the designed oscillator is justified by the PSPICE simulation results based on TSMC 0.35-µm CMOS process parameters. Conclusion: The effects of the VDGA non-idealities on the proposed circuit are also provided, and the computer simulations based on TSMC 0.35-mm CMOS model parameters are included to evalu-ate the performance of the circuit.
dc.identifier.citationRecent Advances in Electrical and Electronic Engineering, 12(5), 439-444, 2019
dc.identifier.doi10.2174/2352096512666181219121941
dc.identifier.issn23520965
dc.identifier.other2-s2.0-85075259380
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/9439
dc.sourceRecent Advances in Electrical and Electronic Engineering
dc.subjectElectronically tunable
dc.subjectQuadrature Oscillator (QO)
dc.subjectResistor-less circuits
dc.subjectSinusoidal oscillator
dc.subjectVoltage differencing gain amplifier (VDGA)
dc.subjectVoltage-mode circuits
dc.titleVoltage differencing gain amplifier-based sinusoidal quadrature oscillator using only two grounded capacitors
dc.typeArticle

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