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

Article

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.

Keywords

Current conveyors All-pass filter Notch filter Dynamic range First generation current conveyor 

Notes

Acknowledgments

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

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Bilgin Metin
    • 1
  • Shahram Minaei
    • 2
  • Oguzhan Cicekoglu
    • 1
  1. 1.Electrical and Electronic Engineering DepartmentBogazici UniversityIstanbulTurkey
  2. 2.Department of Electronics and Communication EngineeringDogus UniversityIstanbulTurkey

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