A new current-mode universal filter is proposed. The filter uses three positive-type current-controlled current-conveyors (CCCII+) and can simultaneously realize lowpass, highpass and bandpass responses. Realization of notch and allpass responses is feasible. The parameters ω_o, ω_o/Q_o and the bandpass gain can be controlled by adjusting the bias currents of the CCCIIs. The proposed circuit enjoys low sensitivities.
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