Abstract: A new configuration for the realization of current-mode all-pass filters with high output impedance is presented.It can realize all-pass filtering function using two Current Controlled Conveyors (CCCIIs) connected to four RC one-port elements.Eight different realizations for the proposed configuration are given in tabular form,which exhibit identical transfer functions but differ in the number of passive components,component matching constraints,possibility of electronically gain adjustment and other properties.PSpice simulation for an actual circuit is conducted,and the result shows that the proposed circuit is valid and effective.

Key words: current-mode, current controlled conveyor, all-pass filter