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.