Universal Pseudo-Differential Filter Using DDCC and DVCCs

Authors

  • Ondrej Sladok
  • Jaroslav Koton
  • Norbert Herencsar

DOI:

https://doi.org/10.5755/j01.eie.23.6.19694

Keywords:

Pseudo-differential filter, voltage-mode, current conveyor, CMRR.

Abstract

In the paper, a universal preudo-differential second-order filter operating in voltage mode, where both intup and output are differential, is presented. The circuit is formed by one differential difference current conveyor (DDCC), two differential voltage current conveyors (DVCCs), and five passive elements. The filter is characterized by high input impedance, minimum number of passive elements that are all grounded, and high common-mode rejection ratio (CMRR). The proposed filter structure is able to realize all five standard frequency filter responses. Non-ideal analysis has been performed by considering the real parasitic parameters of the active elements. The optimization of passive element values has been done in terms of minimal shift of the pole-frequency and to obtain the maximum stop-band attenuation of the high-pass filter response. Functionality is verified by simulations and experimental measurements using readily available integrated circuit UCC-N1B 0520.

DOI: http://dx.doi.org/10.5755/j01.eie.23.6.19694

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Published

2017-12-18

How to Cite

Sladok, O., Koton, J., & Herencsar, N. (2017). Universal Pseudo-Differential Filter Using DDCC and DVCCs. Elektronika Ir Elektrotechnika, 23(6), 46-52. https://doi.org/10.5755/j01.eie.23.6.19694

Issue

Section

ELECTRONICS