AUTHOR(S):

Chandra Shaker Pittala, Srinivasulu Avireni

TITLE

Realization of sinusoidal oscillators using operational Transresistance Amplifier (OTRA)

ABSTRACT

In this paper, four new sinusoidal waveform generators based on the operational transresistance amplifier (OTRA) are presented. The first proposed circuit is a minimum component RC sinusoidal oscillator circuit with one OTRA and a few passive components. The second and third proposed circuits consist of one OTRA and a few passive components, among them two passive components are connected to ground. These circuits are able to control the condition of oscillation and frequency of oscillation independently. The fourth proposed quadrature oscillator circuit uses two OTRAs as main active building blocks and a few external passive components to generate the oscillations. The commercially available IC AD 844 AN has been adopted to implement the proposed circuits on a laboratory breadboard with external passive components. Both the SPICE simulation and experimental results are given to verify the theoretical analysis of the proposed circuits.

KEYWORDS

Oscillators; Operational transresistance amplifier; Analog integrated circuit design; Current mode oscillators; Sinusoidal oscillators.

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Cite this paper

Chandra Shaker Pittala, Srinivasulu Avireni. (2017) Realization of sinusoidal oscillators using operational Transresistance Amplifier (OTRA). International Journal of Circuits and Electronics, 2, 103-114

Copyright © 2017 Author(s) retain the copyright of this article.
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