Universal Current-Controlled Current-Mode Biquad Filter Employing MO-CCCCTAs and Grounded Capacitors

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DOI: 10.4236/cs.2010.12006   PDF   HTML     4,805 Downloads   8,893 Views   Citations

Abstract

This paper presents a universal current-controlled current-mode biquad filter employing current controlled current conveyor trans-conductance amplifiers (CCCCTAs). The proposed filter employs only three MO- CCCCTAs and two grounded capacitors. The proposed filter can simultaneously realize low pass (LP), band pass (BP), high pass (HP), band reject (BR) and all pass (AP) responses in current form by choosing appropriate current output branches. In addition, the pole frequency and quality factor of the proposed filter circuit can be tuned independently and electronically over the wide range by adjusting the external bias currents. The circuit possesses low active and passive sensitivity performance. The validity of proposed filter is verified through PSPICE simulations.

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S. Singh, S. Maheshwari and D. Chauhan, "Universal Current-Controlled Current-Mode Biquad Filter Employing MO-CCCCTAs and Grounded Capacitors," Circuits and Systems, Vol. 1 No. 2, 2010, pp. 35-40. doi: 10.4236/cs.2010.12006.

Conflicts of Interest

The authors declare no conflicts of interest.

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