M. T. Abuelma’atti and M. L. Al-qahtani, “Universal Current-Contolled Current-Mode Filter with Three Inputs and One Output Using Current Controlled Conveyor,” Active Passive Electronics Components, Vol. 21, No. 1, 1998, pp. 33-41. doi:10.1155/1998/83413

has been cited by the following article:

• TITLE: Single MO-CCCCTA-Based Electronically Tunable Current/Trans-Impedance-Mode Biquad Universal Filter

  AUTHORS: Sajai Vir Singh, Sudhanshu Maheshwari, Durg Singh Chauhan

  KEYWORDS: Universal, Current-Mode, Trans-Impedance-Mode, Biquad Filter

  JOURNAL NAME: Circuits and Systems, Vol.2 No.1, January 27, 2011

  ABSTRACT: This paper presents an electronically tunable current/trans-impedance-mode biquad universal filter employing only single multi-output current controlled current conveyor trans-conductance amplifier (MO-CCCCTA) and two grounded capacitors. The proposed filter realizes all the standard filter func-tions i.e. low pass (LP), band pass (BP) and high pass (HP), notch and all pass (AP) filters in the current form at high impedance output through appropriate selection of the input signals, without any matching conditions. Simultaneously, it can also realize all the standard filter functions in trans-impedance form from the same circuit topology. The circuit does not require inverting-type input current signal(s) and double input current signal(s) to realize all the responses in the design. The validity of proposed filter is verified through PSPICE simulations.