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SINGLE FULLY DIFFERENTIAL CURRENT FEEDBACK OPERATIONAL AMPLIFIER (FDCFOA) BIQUADS WITH POSITIVE FEEDBACK TOPOLOGY

Journal Name:

  • Istanbul University Journal of Electrical & Electronics Engineering

Publication Year:

  • 2007

Key Words:

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
New configuration for the design of biquad filters with positive feedback topology is presented. The configuration can synthesize low-pass, high-pass and band-pass filter functions according to the passive components used in circuits. The proposed configuration employs only one FDCFOA as active element and minimum number of passive elements, namely two capacitors and resistors. SPICE simulation results are given to confirm the validity of the analysis and to point out the high performance of the filters. The output of the filter exhibits high output impedance so that the synthesized filter can be cascaded without additional buffers.
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  • 1
305-308
  • English

REFERENCES

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