LM339AD 4-fold differential comparator, 2.0...28V, SO-14

This family of devices consists of four Independent precision voltage comparators with An offset voltage specification of only 2 mV For LM339A, LM239A and LM139A. Each comparator has been specifically designed over a wide voltage range with a single voltage supply range. Operation with split power supplies Power supplies is also possible. These comparators also have a unique feature that the common mode input voltage range includes input voltage range ground, even when operated with a single supply voltage.