On the realization of high-order current-mode filter employing current controlled conveyors

Authors:
Erkan Yuce;Shahram Minaei
Affiliations:
Pamukkale University, Department of Electrical and Electronics Engineering, 20 017 Kinikli-Denizli, Turkey;Dogus University, Department of Electronics and Communication Engineering, Acibadem, Kadikoy, 34722 Istanbul, Turkey
Venue:
Computers and Electrical Engineering
Year:
2008

Citing 1
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A class of digitally programmable nth-order filters

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Implementation of reconfigurable nth-order filter based on CCII

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Abstract

In this paper, a general structure for realizing high-order current-mode analog filter responses with single-input and three-outputs is presented. The proposed circuit uses dual-output second-generation current controlled conveyors (DO-CCCIIs) and only grounded capacitors (Active-C structure), and can simultaneously realize low-pass, band-pass (if order is even number) and high-pass filter responses. The developed circuit does not require any component matching constraints thus it is suitable for fully integrated circuit (IC) technology. Simulations are performed for the fourth-order Butterworth filter to illustrate the frequency domain performance of the circuit.