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Inverse active filters employing CFOAs

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Abstract

New configurations for realizing inverse lowpass, inverse bandpass, inverse highpass and inverse bandreject filters using commercially available current feedback op-amps (CFOA) with an accessible z-terminal such as AD844 are presented. The workability of the proposed circuits has been confirmed by experimental results employing AD844 type CFOAs.

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Authors and Affiliations

  1. Department of Industrial Policy and Promotion, Ministry of Commerce and Industry, Government of India, Udyog Bhawan, New Delhi, 110011, India

    S. S. Gupta

  2. Department of Electronics and Communication Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi, 110025, India

    D. R. Bhaskar

  3. Division of Electronics and Communication Engineering, Netaji Subhas Institute of Technology, Sector-7, Dwarka, New Delhi, 110075, India

    Raj Senani

  4. Department of Electronics and Communication Engineering, Inderprastha Engineering College, Sahibabad, Ghaziabad, UP, 201010, India

    A. K. Singh

Authors
  1. S. S. Gupta
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  2. D. R. Bhaskar
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  3. Raj Senani
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  4. A. K. Singh
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Corresponding author

Correspondence to Raj Senani.

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Gupta, S.S., Bhaskar, D.R., Senani, R. et al. Inverse active filters employing CFOAs. Electr Eng 91, 23–26 (2009). https://doi.org/10.1007/s00202-009-0112-3

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  • DOI: https://doi.org/10.1007/s00202-009-0112-3

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