Two transformation methods for obtaining new topologies from a given curren
t-mode CCII filter are presented. These topologies realise the same transfe
r function as the initial filler for ideal CCIIs, but they can be derived i
n such a way that their active sensitivity with respect to a particular act
ive parameter becomes zero. In this way, from a filter suffering from large
active sensitivities, one may systematically obtain new filters with bette
r active sensitivities.