1 Two New CMOS Schmitt Trigger Circuits based on Current Sink and Pseudo Logic Structures

At the outset, a couple of new CMOS Schmitt triggers are introduced using Current Sink and Pseudo Logic structures and their characteristics are evaluated both analytically and numerically. The hysteresis curves of the proposed Schmitt triggers are also presented. The Schmitt triggers enlisted are most sought after for low-voltage and high-speed applications. The performances of the proposed new Schmitt triggers are examined using PSPICE and the model parameters of a 0.18 µm CMOS process. Current Sink and Pseudo Logic structures are suitable for VLSI implementation. Simulation results are presented