LM139A Datasheet (PDF) Download
National Semiconductor
LM139A

Overview

The LM1~9A series consists of four independent precision voltage comparators with an offset voltage specification of 2 mV. max. for all four comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current draiA is independent of the magnitude of the power supply voltage.