A high-speed low voltage CMOS Schmitt Trigger with adjustable hysteresis

This paper presents a brief overview of Schmitt Triggers and proposes a low voltage adjustable CMOS Schmitt trigger using body biasing technique. The voltage-feedback inverter with body control is employed to speed up the switching process, and control the intensity of the feedback. The proposed Schmitt trigger makes it particularly attractive for low-voltage high-speed applications. The CMOS Schmitt Trigger circuit has been designed using 40nm 1V CMOS technology and simulated using HSPICE with BSIM4 device models. Simulation results are presented.