A novel two – dimensional chaotic system is introduced. The new system exhibits gallery of new chaotic attractors in numerical simulations. The dynamical of new system is analyzed through equilibrium point structure. The nonlinearity is characterized by tan hyperbolic function. The simple chaotic circuit of the proposed system is presented. The proposed circuit is driven by a periodic pulse – train source. For specific parameter values, We replace the tan hyperbolic function by sign function model. One op-amp as a comparator, the only nonlinear device involved to provide the sign nonlinearity. The output of this comparator is a chaotic bipolar pulse – train. The proposed chaotic circuits are examined by Orcad – Pspice.