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Minimum Component Universal Filter Using Current-Feedback Amplifiers
S. N. Ahmad

A multi-input single-output minimum component universal filter is presented. The proposed filter circuit employs two current-feedback amplifiers (CFAs) and only four passive elements to realize low-pass, band-pass, high-pass and notch filter functions at a single output node. The component spread is small. The active and passive sensitivity figures are also fairly low. The simulation results are included.

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