Derivation of low-sensitivity current-mode CCII-based filters

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.