%0 Journal Article
%T Design of a Low Voltage Schmitt Trigger in 0.18 um CMOS Process With Tunable Hysteresis
%A Haroon Rashid
%A Md. Mamun
%A Md. Syedul Amin
%A Hafizah Husain
%J Modern Applied Science
%D 2013
%I 
%R 10.5539/mas.v7n4p47
%X Schmitt triggers are commonly used in communication and signal processing techniques to solve noise problem. A low voltage Schmitt trigger circuit with tunable hysteresis is proposed in this paper. For obtaining hysteresis under low voltage, a cross-coupled static inverter pair is used. By adjusting the symmetrical load operation, the hysteresis of the Schmitt trigger is varied. The cross-coupled inverter pair regenerative operation is controlled by it. Designed in 0.18 um CMOS process technology, the simulation results show that the proposed Schmitt trigger circuitĄ¯s triggering voltage can be adjusted approximately 0.5 V to 1.2 V. The proposed design is suitable to be implemented in buffers, sub-threshold SRAMs, retinal focal plane sensors, wireless transponders and pulse width modulation circuits.
%U http://www.ccsenet.org/journal/index.php/mas/article/view/25820