S. Minaei et al., High output impedance current-mode lowpass, bandpass and highpass filters using current controlled conveyors, INT J ELECT, 88(8), 2001, pp. 915-922
Three new current-mode second-order filter configurations which employ one
or two current controlled conveyors (CCCIIs) and three passive elements are
presented. Each proposed filter can realize one of the bandpass, lowpass o
r highpass responses all at high impedance outputs. The proposed filters of
fer current-control of pole angular frequency w(o) without disturbing the p
arameter w(o)/Q. No component matching is required and all the passive and
active sensitivities are low. PSPICE simulation results are given to confir
m the theoretical analysis.