A low-voltage low-power current-mode differential adjustable Schmitt trigger

This paper presents a low-voltage low-power current-mode differential adjustable Schmitt trigger. The proposed Schmitt trigger consists of current subtractor, current Schmitt trigger and voltage to current converter. The operation range is extended to all four quadrants of the input-output plane. Schmitt trigger is designed using UMC 0.13 μm CMOS technology and operates under the supply voltage of 0.7 V. The simulation results show that the hysteresis lie in the all quadrant of the input-output plane and the power dissipation is only 66 μW.