A comparator with flexible programming of the hysteresis

Abstract

Different from the conventional hysteretic comparators, a simple circuit is introduced to provide flexibility to program the hysteretic threshold in this paper. The hysteresis can be controlled accurately at a large range and equals to the difference of extra controlled voltage to make the hysteresis be controlled expediently. Besides, this structure is not only for low power dissipation comparators but also for high speed comparators.