American Journal of Electrical and Electronic Engineering
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American Journal of Electrical and Electronic Engineering. 2015, 3(3), 71-74
DOI: 10.12691/ajeee-3-3-2
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Novel Single-CFOA-based Sinusoidal Oscillator Capable of Absorbing All Parasitic Impedances

D. K. Srivastava1, V. K. Singh1 and R. Senani2,

1Department of Electronics and Communication Engineering, Institute of Engineering and Technology, Lucknow, India

2Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Sector 4, Dwarka, New Delhi, India

Pub. Date: May 24, 2015

Cite this paper:
D. K. Srivastava, V. K. Singh and R. Senani. Novel Single-CFOA-based Sinusoidal Oscillator Capable of Absorbing All Parasitic Impedances. American Journal of Electrical and Electronic Engineering. 2015; 3(3):71-74. doi: 10.12691/ajeee-3-3-2


Although a large number of single current feedback op-amp (CFOA)-based sinusoidal oscillator circuits have been proposed in the literature, to the best knowledge of the authors, no single-CFOA oscillator configuration has been reported earlier which can absorb all the parasitic impedances of the CFOA in the various external passive elements employed. The major intention of this paper is to report such a circuit. The workability of the proposed circuit has been confirmed by experimental results employing an AD844-type CFOA.

current feedback operational amplifier sinusoidal oscillator analog circuit design

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[1]  Celma, Pedro A. Martinez and Alfonso Carlosena, ‘Current Feedback amplifiers based sinusoidal oscillators’, IEEE Trans. Circuit Syst I, vol.41, no.12, pp. 906-908, 1994.
[2]  M.T. Abuelma’atti, A.A. Farooqi and S. M. Al-Shahrani, ‘Novel RC oscillators using the current-feedback operational amplifier’ IEEE Trans. Circuit Syst I, vol.43, no.2, pp.155-157, 1996.
[3]  P.A. Martinez, S. Celma and J. Sabadell, ‘Designing sinusoidal oscillator using current feedback Amplifier’, Int.J. Electronics, vol.80, no.5, pp.637-646, 1996.
[4]  M.T. Abuelma’atti, A. A. Farooqi and S.M. Al-Shahrani, ‘A Novel low-component-count single-element-controlled sinusoidal oscillator using the CFOA pole’, Int. J. Electronics, vol.80, no.6, pp.747-752, 1996.
[5]  M. T. Abuelma’atti and M. H. Khan, ‘Partially active-R grounded –Capacitor CFOA based sinusoidal Oscillators’, Active and Passive Elec. Components, vol.19, pp. 105-109, 1996.
[6]  M. T. Abuelma’atti and S. M. Al-Shahrani, ‘New CFOA based grounded capacitor single Element controlled Sinusoidal oscillator’, Active and Passive Elec. Components, vol. 20, pp. 119-124, 1997.
[7]  M. T. Abuelma’atti and S. M. Al-Shahrani, ‘A minimum component grounded capacitor CFOA based RC Oscillator’, Active and Passive Elec. Components, vol. 19, pp. 247-251, 1997.
[8]  M. T. Abuelma’atti and S. M. Al-Shahrani, ‘New CFOA-based sinusoidal oscillator’, Int. J. Electronics, vol.82, no.1, pp.27-32, 1997.
[9]  Raj Senani, ‘Realization of a class of Analog signal processing/signal generation circuits: Novel configurations using current feedback op-amps’ Frequenz, vol. 52, pp.196-206, 1998.
[10]  M. T. Abuelma’atti and Sa’ad Muhammad Al-Shahrani, ‘Novel CFOA based sinusoidal oscillators’, Int. J. Electronics, vol. 85, no. 4, pp. 437-441, 1998.
[11]  A. M. Soliman, ‘Three oscillator families using the current feedback op-amp’, Frequenz, vol. 54, pp. 126-131, 2000.
[12]  A. M. Soliman, ‘Current feedback operational amplifier based oscillators' Analog Integrated Circuits & signal processing’, vol.23, pp. 45-55, 2000.
[13]  Abdhesh K. Singh and Raj Senani, ‘Active-R Design Using CFOA-Poles: New Resonators, Filters, and Oscillators’, IEEE Trans. Circuits and Sys.- II: Analog and digital signal processing, vol. 48, no. 5, pp. 504-511, 2001
[14]  E. O. Günes and Ali Toker, ‘On the realization of oscillators using state equations’, Int. J. Electron. Communication, vol. 56, no.5, pp. 317-326, 2002.
[15]  Ali Toker, Oguzhan Cicekoglu, Hakan Kuntman, ‘On the oscillator implementations using a single Current feedback op-amp’, Computers and Electrical Engineering, vol. 28, pp. 375-389, 2002.
[16]  D. R. Bhaskar, ‘Realization of second-order sinusoidal oscillator/ Filter with non-interacting controls using CFAs’, Frequenz, vol. 57, no. 1/2, pp. 1-3, 2003.
[17]  A. U. Keskin, ‘Single resistance controlled oscillators employing single commercially available current feedback amplifiers without external compensation’ Proceedings of International Conference on Signal processing , vol. 1, no. 2, pp. 23-25, 2003.
[18]  Mashhour Bani Amer and Mohammad Ibbini, ‘A Novel Single-Element- Controlled CFOA-Based Square Wave Oscillator’, Third International Conference on Systems, Signals and Devices, Volume IV, 2005.
[19]  V. K. Singh, R. K. Sharma, A. K. Singh, D. R. Bhaskar and R. Senani, ‘Two new canonic single-CFOA oscillators with resistor controls’, IEEE Trans. on CAS II: Express Brief, vol.52, no. 860-864, 2005.
[20]  R. Senani and R. K. Sharma, ‘Explicit current output sinusoidal oscillator employing only a single CFOA’, IEICE Electronics Express, vol.2, no.1, pp.14-18, 2005.
[21]  R. Nandi, T.K. Bandyopadhyay, S.K. Sanyal, Soumik Das, ‘Selective Filters and Sinusoidal Oscillators Using CFA Trans-impedance pole’, Circuits Systems and Signal Processing, vol. 28, pp.349-359, 2009.
[22]  R. Nandi, S. K. Sanyal and T. K. Bandyopadhyay, ‘Single CFA-Based Integrator, Differentiator, Filters and Sinusoid Oscillator’, IEEE Trans. on Instrumentation and Measurements, vol. 58, no. 8, pp. 2557-2564, 2009.
[23]  D.R. Bhaskar, Raj Senani, A. K. Singh, S. S. Gupta ‘Two Simple Analog Multiplier Based Linear VCOs using a single Current Feedback Op-Amp’, Circuits and Systems, vol. 1, pp. 1-4, 2010.
[24]  Dharmesh Kumar Srivastava and V. K. Singh, ‘Single-Capacitor-Controlled Oscillators using a Single CFOA’ International Conference on Circuits, Systems and Simulation IPCSIT vol.7, 2011.
[25]  D.K. Srivastava, V. K. Singh and R. Senani, ‘New very low frequency oscillator using only a single CFOA’, American Jour. of Electrical and Electronics Engineering (USA), vol.3, No.2 pp.1-3, 2015.