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Enhanced dynamic range analog filter topologies with a notch/all-pass circuit example

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Abstract

The signal handling capability of the filters is called dynamic range. In this paper, a topological form for the synthesis of filters with high dynamic range is proposed. A biquad notch/all-pass filter is shown in conformity with the given topological form. It is shown that there is a trade-off between dynamic range and high input impedance property. The presented circuit is compared with other notch filters in the literature. It has less number of components, better high-frequency response and dynamic range compared to others. Since the circuit includes a minimum number of resistors, it can easily provide electronically tunable circuits through resistor/controlled current conveyor replacement. Simulations are performed to verify the theoretical results. Routh-Hurwitz stability analyses are also given.

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Acknowledgments

This work is/was supported by Bogazici University Research Fund, with the project code 05A201D.

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Authors and Affiliations

  1. Electrical and Electronic Engineering Department, Bogazici University, Bebek, Istanbul, 34342, Turkey

    Bilgin Metin & Oguzhan Cicekoglu

  2. Department of Electronics and Communication Engineering, Dogus University, Acibadem, Kadikoy, Istanbul, 34722, Turkey

    Shahram Minaei

Authors
  1. Bilgin Metin
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  2. Shahram Minaei
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  3. Oguzhan Cicekoglu
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Correspondence to Bilgin Metin.

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Metin, B., Minaei, S. & Cicekoglu, O. Enhanced dynamic range analog filter topologies with a notch/all-pass circuit example. Analog Integr Circ Sig Process 51, 181–189 (2007). https://doi.org/10.1007/s10470-007-9054-8

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  • DOI: https://doi.org/10.1007/s10470-007-9054-8

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