The LM393 dual differential comparator is made up of two voltage comparators that operate using the same power supply. The supply voltage can range from 2 to 36 volts.
Dual supplies can also be used as long as the difference between them is 2 to 36 volts. The LM393 is designed to operate at a temperature range of 0℃ to 70℃.

FEATURES
Single or dual supplies
2 to 36 V Supply
Low Input Bias Current
Low Input Offset Voltage
Low Input Offset Current
Low Supply Current Drain
Output Compatible with TTL, MOS, and CMOS