Constant-$g_m$ Rail-to-Rail CMOS Multi-Output FTFN

An alternative CMOS implementation of a multi-output four-terminal floating nullor (FTFN) with constant-g$_{m}$ rall-to-rail input stage is proposed. This presented circuit is based on the advantages of a complementary transconductance amplifier and class AB dual translinear cell circuit that comes up with wide bandwidth. The constant-g$_{m}$ characteristic is controlled by the maximum-current selection circuits, maintaining the smooth response over the change of input common mode voltage. The circuit performances are confirmed through HSPICE simulations. A current-mode multifunction filter is used to exhibit the potentiality of this proposed scheme.eme.