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New Resistor-Less Electronically Tunable OTA-based Fully Floating FDNR Simulator

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Abstract

A floating FDNR using four OTAs (operational transconductance amplifiers) and two grounded capacitances have been reported in this article. As per the reviewed literature, the proposed floating FDNR is based upon a minimum number of transistors with a resistor-less and grounded capacitances based structure as compared to any other FDNR simulators and can be considered the most compact configuration ever reported. It offers some excellent features like; electronically tunable behavior, purely resistor-less architecture, no restraint of parameter values matching, use of only grounded capacitances, and fully symmetric floating architecture. We have investigated the circuit for port parasitics and non-ideal gains of the employed OTAs and presented the analysis. It is found that the circuit nature remains almost unchanged in non-ideal conditions. The influence of frequency-dependent transconductance has also been analyzed. The FDNR simulation through the reported circuit has been verified through the PSPICE-generated simulation results. The higher-order CDR filtering circuit application of the proposed FDNR has also been reported and checked through simulations. The presented OTA-based FDNR has been experimentally verified through the CA3080 IC-based implementation and results are discussed.

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Data Availability statement

Data sharing not applicable to this article as no datasets were generated or analysed during the current study.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, National Institute of Technology Jamshedpur, Jamshedpur, India

    Kapil Bhardwaj & Mayank Srivastava

  2. School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand

    Worapong Tangsrirat

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  1. Kapil Bhardwaj
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  2. Mayank Srivastava
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  3. Worapong Tangsrirat
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Correspondence to Mayank Srivastava.

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Bhardwaj, K., Srivastava, M. & Tangsrirat, W. New Resistor-Less Electronically Tunable OTA-based Fully Floating FDNR Simulator. Wireless Pers Commun 130, 143–164 (2023). https://doi.org/10.1007/s11277-023-10279-6

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