The LM339x2 consists of eight independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies is also possible when 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 wire-AND relationships.