These devices consist of four independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible, as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open- collector outputs to achieve wired-AND relationships. https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2017-08-06 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2018-05-04 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2018-12-17 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2019-04-03 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2021-06-09 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2021-10-21 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2024-04-17 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2024-05-11 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2025-12-26 https://elecena.pl/product/9716169/lm139dg4-4-fold-differential-comparator-2-0-36v-so-14 2026-02-04