Abstract: “In this paper, four new voltage-mode first-order all pass filters are proposed. Each circuit employs two differential difference current conveyors (DDCC) and two passive components with no matching condition. The proposed circuits offer high-input and low-output impedance, low active and passive sensitivities, which is a desirable feature for the voltagemode systems. Non-ideal analysis and parasitic effect study is also performed. The theoretical results are verified by SPICE simulation.”

Keywords: All-pass filter, analog circuits, current conveyor,