A State Variable Method for the Realization of Universal Current-Mode Biquads

Raj Senani, Kasim Karam Abdalla, Data Ram Bhaskar

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DOI: 10.4236/cs.2011.24040                

Abstract

A state variable method of converting single-resistance-controlled- oscillators (SRCO), into universal current-mode biquad (offering realizations of all the five standard filter functions namely, low pass, band pass, high pass, notch and all pass) has been highlighted. The workability of the exemplary implementation of the derived current-mode universal biquad has been demonstrated by PSPICE simulation results based upon 0.35 μ m technology. It is expected that the proposed method can be applied to other SRCOs to generate other multifunction filter structures.

Keywords

Analog Electronics, Circuit Theory and Design, Current Mode Circuits, Universal Biquads, Current Conveyors

Conflicts of Interest

The authors declare no conflicts of interest.

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