A Novel Realization of Current-Mode First Order Universal Filter

A novel first order current mode universal filter (FOCMUF) structure is introduced. The circuit employs a differential difference dual-X second generation current conveyor (DD-DXCCII) which is a versatile member of current conveyor family. Simultaneous multiple filter functions i.e. high pass (HP), low pass (LP) and all pass (AP) are readily available at the high impedance terminals which make the proposed topology well suited for cascading applications. Use of only one active block, grounded capacitor only, high operating frequency and low sensitivity figures are the key highlights of the presented configuration. Moreover, non-ideal analysis and parasitic study are also presented. PSPICE simulation results verify the correctness and validity of the obtained responses.