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Faculty of Science, University of Brunei Darussalam, Brunei Darussalam   
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IJIEE 2011 Vol.2(1): 44-49 ISSN: 2010-3719
DOI: 10.7763/IJIEE.2012.V2.53

Voltage-Mode Universal Filter Employing Two Plus-Type DDCCs

Hua-Pin Chen, Kuo-Wei Huang, and Tsung-Yu Liu

Abstract—This paper introduces a voltage-mode universal filter with three inputs and four outputs employing two plus-type differential difference current conveyors (DDCCs), two grounded capacitors and two resistors. The proposed circuit can act as a high-input impedance multifunction voltage-mode filter with single input and four outputs and can simultaneous realization of voltage-mode lowpass, highpass and two bandpass filter responses from the four output terminals, respectively, without any component choice conditions. On the other hand, it also can act as a universal voltage-mode filter with three inputs and a single output and can realize all five different generic filtering responses from the same configuration without any component matching conditions. The circuit dose not require inverting-type voltage single to realize all the filtering functions. Active and passive sensitivity performances are low. HSPICE simulation results using TSMC 0.18µm 1P6M CMOS process technology and ±0.9V supply voltages validate the theoretical predictions.

Index Terms—Active filters, voltage-mode; DDCC, analog electronics.

Authors are with the Ming Chi University of Technology, Taishan, Taiwan (e-mail: hpchen@mail.mcut.edu.tw, willy60605@yahoo.com.tw, sealskk888@hotmail.com).

[PDF]

Cite: Hua-Pin Chen, Kuo-Wei Huang, and Tsung-Yu Liu, "Voltage-Mode Universal Filter Employing Two Plus-Type DDCCs," International Journal of Information and Electronics Engineering vol. 2, no. 1, pp. 44-49, 2011.

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