A single-input and three-output current-mode biquadratic filter using multiple-output OMAs

Abstract

A single-input and three-output current-mode biquadratic filter employing three multiple-output operational mirrored amplificrs is proposed, With high outputs impedance, the circuit simultaneously realizes lowpass, bandpass and highpass filter functions without changing its configuration and elements. The filter provides low sensitivities, uses only grounded passive elements and the parameters ω॰ and Q-factor can be orthogonally tuned