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Novel CMOS Dual-X Current Conveyor Transconductance Amplifier Realization with Current-Mode Multifunction Filter and Quadrature Oscillator

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Abstract

This paper presents a novel active element, namely dual-X current conveyor transconductance amplifier. The CMOS implementation, parasitic model and characteristic performance parameters of the proposed dual-X current conveyor transconductance amplifier have been explored. The proposed active element has the advantages of good operational bandwidth, good dynamic range and low power consumption. Additionally, current-mode multifunction filter and quadrature oscillator are proposed to examine the applicability of the newly proposed active element. The proposed current-mode multifunction filter provides the responses, low-pass, high-pass and band-pass simultaneously without any circuit modification. The proposed quadrature oscillator circuit simultaneously generates three current outputs and three voltage outputs. The non-ideal analyses of both current-mode multifunction filter and quadrature oscillator are also included. Moreover, the active and passive sensitivities of both current-mode multifunction filter and quadrature oscillator are calculated which are found to be less than unity in magnitude. HSPICE simulation results are depicted to confirm the theoretical analyses. Moreover, practicality of novel dual-X current conveyor transconductance amplifier is examined through the experimental results of the proposed quadrature oscillator.

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Acknowledgements

The authors are thankful to the anonymous reviewers for their useful feedback which helps in the enrichment of the paper. The authors are also thankful to the Associate Editor and Editor-in-Chief for recommending this paper.

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  1. Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, U.P., 201304, India

    Atul Kumar & Bhartendu Chaturvedi

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  1. Atul Kumar
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  2. Bhartendu Chaturvedi
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Correspondence to Atul Kumar.

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Kumar, A., Chaturvedi, B. Novel CMOS Dual-X Current Conveyor Transconductance Amplifier Realization with Current-Mode Multifunction Filter and Quadrature Oscillator. Circuits Syst Signal Process 37, 2250–2277 (2018). https://doi.org/10.1007/s00034-017-0680-9

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