This part is a kind of comparator called LM339, LM339-N.

Function of this product has Low-Power Low-Offset Voltage Quad Comparator.

Package is SOIC 14 Pin Type

Manufacturers : Texas Instruments

Image and pinout :

LM339 - Quad Differential Comparator

Some of the text within the PDF file :


The LM339 and LM2901B devices are the next generation versions of the industry-standard LM339 and LM2901 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps. The LM339B and LM2901B can drop-in replace the LM239, LM339 and LM2901, for both "A" and "V" grades.


All devices consist of four independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages.

1. Features:

NEW LM339B and LM2901B

Improved specifications of B-version

Maximum rating: up to 38 V

ESD rating (HBM): 2k V

Low input offset: 0.37 mV

Low input bias current: 3.5 nA

Low supply-current: 200 µA per comparator

Faster response time of 1 µsec

Extended temperature range for LM339B

B-version is drop-in replacement for LM239, LM339 and LM2901, A and V versions

Common-mode input voltage range includes ground

Differential input voltage range equal to maximum-rated supply voltage: ±38 V

Low output saturation voltage

Output compatible with TTL, MOS, and CMOS

For single version, see the TL331B

For dual version, see the LM393B or LM2903B


2. Applications:

Vacuum robot

Single phase UPS

Server PSU

Cordless power tool

Wireless infrastructure


Building automation

Factory automation & control

Motor drives

Infotainment & cluster


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LM339 PDF Datasheet Download


2023/06/07 14:25 2023/06/07 14:25