Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2007.1321.1326Garcia-OrtegaJohana-M.Tlelo-CuautleEstebanSanchez-LopezCarlos9200779It is presented a method to design Current-Mode (CM) filters from the transformation of the well-known Voltage-Mode (VM) opamp-RC filters. First, it is shown the simulation of a low-frequency opamp-RC filter with stable high Q, by applying the Y-Δ transformation. Second, it is described the transformation of the VM opamp-RC filter to a VM Gm-C filter and the symbolic transfer functions of the VM Gm-C filter are derived. Third, it is shown the transformation of the VM Gm-C filter to a CM Gm-C filter and the symbolic transfer functions of the CM filter are derived to show that both, the VM and the CM Gm-C filters perform the same behavior. Finally, some guidelines are introduced to design CM filters with CMOS OTAs and current conveyors.]]>Ahmed, R.F., I.A. Awad and A.M. Soliman,,2006Chua, L.O., C.A. Desoer and E.S. Kuh,1987Fakhfakh, M., M. Loulou, N. Masmoudi, C. Sanchez-Lopez and E. Tlelo-Cuautle,2007Geiger, R.L. and E. Sanchez-Sinencio,1985Huelsman, L. and P.E. Allen,1980Koziel, S. and S. Szczepanski,2003Masmoudi, D.S., N.B. El-Fek, S.B. Salem, M. Fakhfakh and M. Loulou,2005Nobuyuki, M. and M. Nakamura,2005Salem, S.B., M. Fakhfakh, D.S. Masmoudi, M. Loulou, P. Loumeau and N. Masmoudi,2006Sanchez-Lopez, C. and E. Tlelo-Cuautle,2006Sanchez-Sinencio E. and J. Silva-Martinez,2000Tlelo-Cuautle, E., A. Quintanar-Ramos, G. Gutierrez-Perez and M. Gonzalez de la Rosa,2004Torres, D. and E. Tlelo,2004