American Journal of Electrical and Electronic Engineering
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American Journal of Electrical and Electronic Engineering. 2020, 8(1), 1-10
DOI: 10.12691/ajeee-8-1-1
Open AccessArticle

A Class of Single-CFOA-based Sinusoidal Oscillators

Dharmesh Kumar Srivastava1, Vinod Kumar Singh2 and Raj Senani3,

1Department of Electronics and Communication, SR Institute of Management and Technology, Lucknow, India

2Department of Electronics and Communication, Institute of Engineering and Technology, Sitapur Road, Aliganj, Lucknow, India

3Department of Electronics and Communication Engineering, Netaji Subhas University of Technology, Sector 3, Dwarka, New Delhi, India

Pub. Date: December 29, 2019

Cite this paper:
Dharmesh Kumar Srivastava, Vinod Kumar Singh and Raj Senani. A Class of Single-CFOA-based Sinusoidal Oscillators. American Journal of Electrical and Electronic Engineering. 2020; 8(1):1-10. doi: 10.12691/ajeee-8-1-1


A class of second order sinusoidal oscillators is presented which employs a single Current feedback-operational amplifier, four capacitors and four to five resistors which can be realized by CMOS linear voltage controlled resistors (VCR). The proposed circuits are simultaneously single resistance controlled oscillators (SRCO) as well as single capacitor controlled oscillators (SCCO) providing independent control of condition of oscillation and frequency of oscillation through independent resistors as well as independent capacitors. To the best knowledge of the authors, any single-CFOA-based oscillators which are simultaneously SRCOs as well as SCCOs have not been reported in the literature earlier. SPICE simulation results using 0.18μm CMOS technology have been given which confirm the validity of the proposed circuits.

current feedback op-amps sinusoidal oscillators voltage controlled oscillators

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