DESCRIPTION
   The LM393 consists of two independent voltage comparators. These 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 drain is independent of the magnitude of the power supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.

FEATURES
◾ Wide supply voltage range
◾ Low supply current drain independent of supply
   voltage.
◾ Low input biasing current
◾ Low input offset current
◾ Low input offset voltage
◾ Input common-mode voltage range includes GND
◾ Differential input voltage range equal to the power
   supply voltage
◾ Low output saturation voltage
◾ Output voltage compatible with TTL, MOS and CMOS
   logic