The LM2901, LM339/LM339A, LM239/LM239A, LM3302 consist of four independent voltage comparators designed to operate from single power supply over a wide voltage range. Product Highlights: Single or dual supply operation Wide range of supply voltage LM2901, LM339/LM339A, LM239/L<239A: 2 ~ 36V (or 1 ~ 18V) LM3302: 2 ~ 28V (or 1 ~ 14V)