Realization of current-mode complex pole all-pass networks using a single current conveyor

A current-mode all-pass circuit which utilizes a first-generation current conveyor (CCI) as the only active element is derived. This circuit is useful in its own right, but it also demonstrates that the CCI offers an advantage in the realization of current-mode circuits containing only one current conveyor and no other active devices. Higher-order all-pass circuits can be constructed by cascading the circuits. The circuits sensitivities and gain-bandwidth limitations on their performance are calculated, and laboratory results are presented