LM393 Data Sheet – Two Independent Voltage Comparator

Part Number: LM393


Package: DIP, SOP 8 Pin Type

Manufacturer: Motorola, Texas Instruments


LM393 datasheet



The LM393 consist of two independent voltage comparators that is 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. The LM193 is characterized for operation from −55°C to 125°C. The LM293 and LM293A are characterized for operation from −25°C to 85°C. The LM2903 is characterized for operation from −40°C to 125°C.


• Single Supply or Dual Supplies

• Wide Range of Supply Voltage
– Max Rating: 2 V to 36 V
– Tested to 30 V: Non-V Devices
– Tested to 32 V: V-Suffix Devices

• Low Supply-Current Drain Independent of Supply Voltage: 0.4 mA (Typ) Per Comparator

• Low Input Bias Current: 25 nA (Typ)

• Low Input Offset Current: 3 nA (Typ) (LM139)

• Low Input Offset Voltage: 2 mV (Typ)

• Common-Mode Input Voltage Range Includes Ground

• Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage: ±36 V

• Low Output Saturation Voltage

• Output Compatible With TTL, MOS, and CMOS

• On Products Compliant to MIL-PRF-38535 All Parameters Are Tested Unless Otherwise


• Vacuum robot

• Single phase UPS

• Server PSU

• Cordless power tool

• Wireless infrastructure


Other data sheets are available within the file: LM193, LM193DR, LM2903, LM2903DGKR, LM2903DR


LM393 Datasheet PDF Download

LM393 pdf