LM339AD Comparators by STMicroelectronics

Low power quad voltage comparator

Status: Active
Series: LM339
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

This family of devices consists of four independent precision-voltage comparators with an offset voltage specification as low as 2 mV maximum for LM339A, LM239A, and LM139A. Each comparator has been designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible. These comparators also have a unique characteristic in that the input common mode voltage range includes ground even though operated from a single power supply voltage.
Distributor Stock
Logo for Texas Instruments Texas Instruments
10,176 units
Buy Now
Logo for Future Electronics Future Electronics
5,950 units
Buy Now
Logo for Arrow Electronics Arrow Electronics
2,150 units
Buy Now
Logo for Avnet America Avnet America
Buy Now
Logo for Avnet Europe Avnet Europe
Buy Now
Logo for element14 element14
Buy Now
Logo for Newark Electronics Newark Electronics
Buy Now
Logo for Mouser Electronics Mouser Electronics
Buy Now
View Full Pricing & Stock Comparison


Wide single supply voltage range or dual supplies for all devices: +2 to +36 V or ±1 V to ±18 V
Very low supply current (1.1 mA) independent of supply voltage
Low input bias current: 25 nA typ
Low input offset current: ±5 nA typ
Low input offset voltage: ±1 mV typ
Input common-mode voltage range includes ground
Low output saturation voltage: 250 mV typ;(ISINK = 4 mA)
Differential input voltage range equal to the supply voltage
TTL, DTL, ECL, MOS, CMOS compatible outputs

Alternative Descriptions

LM339 Series Quad 32 V 100 nA SMT Low Power Voltage Comparator - SOIC-14 | Future Electronics
Comparator Quad ±16V/32V 14-Pin SO Tube | Avnet America
COMPARATOR, QUAD, 14SOIC | element14
Conditioning & Interfaces Rohs Compliant: Yes |Stmicroelectronics LM339AD | Newark Electronics
Lo-Pwr Quad Voltage | Mouser Electronics

Featured content from Future

LM339AD Amplifiers & Comparators by Texas Instruments

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The LMx39x and the LM2901xx devices consist of four independent voltage comparators that are 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 commonmode 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 LM139 and LM139A devices are characterized for operation over the full military temperature range of –55°C to 125°C. The LM239 and LM239A devices are characterized for operation from –25°C to 125°C. The LM339 and LM339A devices are characterized for operation from 0°C to 70°C. The LM2901, LM2901AV, and LM2901V devices are characterized for operation from –40°C to 125°C.


Comparator Type Differential
No. of Comparators 4 Comparators, 4
Response Time 300ns
Supply Voltage Range 2V to 36V
Comparator Case Style SOIC
No. of Pins 14Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Amplifier Case Style SOIC
Base Number 339
Comparator Features Open Collector Open Drain
Device Marking LM339AD
IC Generic Number 339
IC Temperature Range Commercial
Logic Function Number 339
No.Comparators 4
Operating Temperature Range 0°C to +70°C
Output Compatibility CMOS MOS TTL
Supply Current 800µA
Supply Voltage Max 36V
Supply Voltage Min 2V
Termination Type Surface Mount Device

Alternative Descriptions

Precision quad differential comparator, commercial grade | Texas Instruments
SMT TUBE | Component Electronics
Quadruple Differential Compara | Newark Electronics
Quad Differential | Mouser Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM339AD?

Additional datasheets, footprints and schematics for LM339AD are listed on our Part Details page. You can also find images and similar parts to LM339AD on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LM339AD on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LM339AD price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LM339AD fall under?

The LM339AD is listed under Amplifiers and Comparators > Comparators > Standard Comparators.

Can I view similar or alternative parts?

You can view similar parts to LM339AD when available in the Standard Comparators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LM339AD you can contact the distributor directly for product support, shipping queries etc.

Is the LM339AD RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for LM339AD have stock available?

Authorised distributors including Texas Instruments, Future Electronics, Arrow Electronics, Avnet America and Avnet Europe have stock available or on a lead time for LM339AD.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for LM339AD often in real-time on the comparison pages.

What if I can't find stock of LM339AD?

You can fill out our help required form which you can use to request a quote for LM339AD from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.