LM393M Datasheet – Two Independent Voltage Comparator

Part Number: LM393M

Function: Precision Voltage Comparator

Package: SOIC 8 Pin Type

Manufacturer: National Semiconductor,  ON Semiconductor

Image and Pinouts:

LM393M datasheet



The LM393M, LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode range−to−ground level with single supply operation. Input offset voltage specifications as low as 2.0 mV make this device an excellent selection for many applications in consumer, automotive, and industrial electronics.


• Wide Single-Supply Range: 2.0 Vdc to 36 Vdc
• Split-Supply Range: ±1.0 Vdc to ±18 Vdc
• Very Low Current Drain Independent of Supply Voltage: 0.4 mA
• Low Input Bias Current: 25 nA
• Low Input Offset Current: 5.0 nA
• Low Input Offset Voltage: 5.0 mV (max) LM293/393


1. High precision comparators
2. Reduced VOS drift over temperature
3. Eliminates need for dual supplies
4. Allows sensing near ground

Other data sheets are available within the file:

LM2903, LM2903V, LM293, LM393


LM393M Datasheet PDF Download

LM393M pdf