Sharif University of Technology Scientia Iranica 1026-3098 23 3 2016 06 01 Current feedback op-amp based linear voltage-controlled oscillator using analog multipliers and minimum passive components Current feedback op-amp based linear voltage-controlled oscillator using analog multipliers and minimum passive components 1294 1300 3897 10.24200/sci.2016.3897 EN W. Jaikla Department of Engineering Education, Faculty of Industrial Education, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, Thailand. A. Lahiri D3, Friends Apartment, IP Extension, Delhi, 110092, India. Journal Article 2016 06 25 This paper reports a new realization of linear Voltage-Controlled Oscillator (VCO) using three Current-Feedback Op-Amps (CFOAs), three analog multipliers, and only four passive components. Thus, minimum numbers of passive components are used to devise a canonic sinusoidal oscillator. The circuit provides non-interactive electronic tuning of both the Condition of Oscillation (CO) and the Frequency of Oscillation (FO) via the gains of two dierent analog multipliers. The impedance at output node exhibits low impedance which is easy to directly connect to load without any additional voltage buer. The proposed circuit has been simulated in SPICE using macro-model of AD844 CFOA ICs and AD633 multiplier ICs. https://scientiairanica.sharif.edu/article_3897_89bba4127bce6460fe391cc3dbfe9551.pdf