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Modular log-domain filters based upon linear Gm-C filter synthesis

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2 Author(s)
Mahattanakul, J. ; Mahanakorn Univ. of Technol., Bangkok, Thailand ; Toumazou, C.

A modular approach for realizing various kinds of linear filters based upon different types of nonlinear transconductors is proposed. By using this approach, traditional Gm-C filter structures can be readily transformed into log-domain and other related kinds of filters with linear transfer characteristics. The synthesis and realization of the proposed filters are demonstrated and the simulation results given

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Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on  (Volume:46 ,  Issue: 12 )