New analytical synthesis of current-mode multiple output high order filter structure

A new analytical synthesis method for high order multiple output current-mode general filter structure is described. This method is based on the decomposition of the n-th order general transfer function into n-first order equations plus one equation for the realization of the n-th output current. Based on this method, a proposed n-th order current-mode simultaneous output filter structure is presented. The proposed filter structure uses minimum number of components and grounded capacitors. A fifth order Butterworth filter, obtained from the general structure, is also produced with simulations.