OTA high pass filter-based multiphase sinusoidal oscillator

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dc.contributor.authorThongdit, Preecha
dc.contributor.authorKunto, Terdsak
dc.contributor.authorPrommee, Pipat
dc.date.accessioned2026-08-06T10:12:15Z
dc.date.available2026-08-06T10:12:15Z
dc.date.issued2015-10-09
dc.description.abstractThis paper proposes a new approach to implement a multiphase sinusoidal oscillator using loop-back of n-cascaded high-pass filters form. Two basic CMOS Multiple Outputs Operational Transconductance Amplifier (MOOTA) and grounded capacitors are constructed as a current-mode high-pass filter. Gain and frequency response of high-pass filter can be independently tuned through the particular bias current. It is, therefore, orthogonally of oscillation condition and frequency oscillation is obtained through bias currents of each OTA. Multiphase sinusoidal current output and voltage output can be obtained with equally space in phase of 360/n degree. Third-order high-pass filter has been raised to confirm the theoretical agreement. Low-harmonic distortion of achieved sinusoidal output less than 0.75% is obtained. The performances are carried out by PSpice for confirm its attractive characteristics.
dc.identifier.citation2015 38th International Conference on Telecommunications and Signal Processing Tsp 2015, 2015
dc.identifier.doi10.1109/TSP.2015.7296390
dc.identifier.other2-s2.0-84960172948
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/6438
dc.source2015 38th International Conference on Telecommunications and Signal Processing Tsp 2015
dc.subjectHigh-pass filter
dc.subjectMultiphase Oscillator
dc.subjectOTA
dc.titleOTA high pass filter-based multiphase sinusoidal oscillator
dc.typeConference Paper

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