LM393 Datasheet PDF / Fairchild / Comparator

Part Number: LM393

Function: Dual Differential Comparator

Package: DIP, SOP 8 Pin Type

Manufacturer: Fairchild Semiconductor, onsemi.com


LM393 datasheet


The LM2903, LM393, LM393A, LM293A consist of two independent voltage comparators designed to operate from a single power supply over a wide voltage range.

The 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


• Single Supply Operation : 2V to 36V

• Dual Supply Operation : ±1V to ±18V

• Allow Comparison of Voltages Near Ground Potential

• Low Current Drain 800μA Typ.

• Compatible with all Forms of Logic

• Low Input Bias Current 25nA Typ.

• Low Input Offset Current ±5nA Typ.

• Low Offset Voltage ±1mV Typ.


1. Vacuum robot

2. Single phase UPS

3. Server PSU

4. Cordless power tool

5. Wireless infrastructure

LM393 Datasheet PDF Download

LM393 pdf

Other data sheets are available within the file:

LM2903, LM2903M, LM2903MX, LM2903N, LM293A