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Current controlled current conveyor transconductance amplifier (CCCCTA): a building block for analog signal processing

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Abstract

This article presents a basic current-mode building block for analog signal processing, namely current controlled current conveyor transconductance amplifier (CCCCTA). Its parasitic resistance at current input port can be controlled by an input bias current. It is very suitable for use in current-mode signal processing, which is becoming more popular than voltage mode. The proposed element is realized in a bipolar technology and the performances are examined through PSPICE simulations, displaying usabilities of the new active element. The CCCCTA performs tuning over a wide current range. The description includes some examples as a current-mode universal biquad filter, voltage-mode universal biquad filter, a grounded inductance simulator, a current-mode multiplier/divider and an oscillator. They occupy only a single CCCCTA.

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Correspondence to M. Siripruchyanun.

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Siripruchyanun, M., Jaikla, W. Current controlled current conveyor transconductance amplifier (CCCCTA): a building block for analog signal processing. Electr Eng 90, 443–453 (2008). https://doi.org/10.1007/s00202-007-0095-x

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  • DOI: https://doi.org/10.1007/s00202-007-0095-x

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