0.4 V ultra-low voltage differential CMOS Schmitt trigger

摘要

In this paper, we present an ultra-low voltage differential CMOS Schmitt trigger. Bulk-driven and sub-threshold techniques are used to achieve low voltage operation in the proposed circuit. The regenerative current feedback is also used to generation the hysteresis of the opamp-based Schmitt trigger in this paper. The proposed Schmitt trigger is designed and simulated in 0.18μm CMOS technology and it is operated in 0.4 V supply voltage.