Current-Mode High Output Impedance Sinusoidal Oscillator Configuration Employing Single FTFN

Authors:
Uğur Çam;Ali Toker;Oğuzhan ÇiÇekoğlu;Hakan Kuntman
Affiliations:
Department of Electrical and Electronics Engineering, Engineering Faculty, Sakarya University, 54040 Esentepe, Adapazarı, Turkey;Department of Electronics and Communication Engineering, Faculty of Electrical and Electronic Engineering, Istanbul Technical University, 80626 Maslak, Istanbul, Turkey;M.Y.O. Electronics Program, Bogğazi i University, 80815 Bebek, Istanbul, Turkey;Department of Electronics and Communication Engineering, Faculty of Electrical and Electronic Engineering, Istanbul Technical University, 80626 Maslak, Istanbul, Turkey
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2000

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Abstract

In this study, a general current-mode high output impedance sinusoidal oscillator configuration is proposed. The proposed oscillator configuration uses a single four terminal floating nullor (FTFN), two capacitors and five resistors. The oscillator configuration exhibits high output impedance which makes easy to drive loads without using any buffering devices and provide non-interactive control of oscillation condition and oscillation frequency. The proposed topology also yields single frequency oscillators with reduced number of passive components. All of the proposed oscillators permit good frequency stability and exhibit low active and passive sensitivities. Theoretical analysis is verified with experimental results.