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Current-tunable current-mode multifunction filter based on dual-output current-controlled conveyors
Author(s)
Date Issued
September 3, 2007
Type
Article
Abstract
In this paper, a current-tunable current-mode multifunction filter with two inputs and two outputs employing only four dual-output current-controlled conveyors (DO-CCCIIs) and two grounded capacitors is proposed. By appropriately connecting the input and output terminals, the proposed circuit can provide lowpass, bandpass, highpass, bandstop and allpass current responses. The filter also offers an independent electronic control of the natural frequency (ωo) and the quality factor (Q) through adjusting the bias currents of the DO-CCCIIs. No critical matching conditions are imposed for realizing all the filter responses, and all the incremental parameter sensitivities are low. The characteristics of the proposed circuit are simulated using PSPICE to confirm the theory. © 2006 Elsevier GmbH. All rights reserved.
Citation
AEU International Journal of Electronics and Communications, 61(8), 528-533, 2007