Structure of complex elliptic Gm-C filters suitable for fully differential implementation

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Structure of complex elliptic Gm-C filters suitable for fully differential implementation

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The complexification method of Gm-C filters is presented. Unlike the previously reported method, the proposed method is suitable for the realisation of the fully differential complex Gm-C filters with finite zeros. Based upon the proposed method, complexification of the third-order elliptic Gm-C filter is demonstrated and the practical transistor-level simulation results of the resulting complex filter are also given.

Inspec keywords: elliptic filters; poles and zeros; state-space methods

Other keywords: complex elliptic Gm-C filters; complexification method; fully differential Gm-C filters; transistor-level simulation; third-order elliptic Gm-C filter; finite zeros

Subjects: General circuit analysis and synthesis methods; Filters and other networks

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