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A 50 mHz Sinh-Domain High-pass Filter for Realizing an ECG Signal Acquisition System

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Abstract

A Sinh-Domain high-pass filter topology with 50 mHz cutoff frequency is proposed in this paper. The realization of the required extremely large time constant is achieved through the employment of appropriate current division network, constructed from appropriate configured dividers. As an application example, an electrocardiography (ECG) signal acquisition system is realized, where 50/60 Hz bandstop (notch) and low-pass filters have also been employed. Using the Analog Design Environment of the Cadence software and MOS transistors parameters provided by the TSMC 180 nm CMOS process, the performance of all intermediate stages has been evaluated, in terms of the most important performance factors. In addition, the behavior of the proposed system has been studied through the stimulation with noisy ECGs.

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Authors and Affiliations

  1. Electronics Laboratory, Physics Department, University of Patras, 26504 , Rio Patras, Greece

    Filomila Kafe & Costas Psychalinos

  2. Department of Electronics and Instrumentation Technology, University of Kashmir, Srinagar, 190006, J&K, India

    Farooq A. Khanday

Authors
  1. Filomila Kafe
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  2. Farooq A. Khanday
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  3. Costas Psychalinos
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Correspondence to Costas Psychalinos.

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Kafe, F., Khanday, F.A. & Psychalinos, C. A 50 mHz Sinh-Domain High-pass Filter for Realizing an ECG Signal Acquisition System. Circuits Syst Signal Process 33, 3673–3696 (2014). https://doi.org/10.1007/s00034-014-9826-1

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  • DOI: https://doi.org/10.1007/s00034-014-9826-1

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