LM239D Comparators by STMicroelectronics

Low power quad voltage comparator

Status: Active
Series: LM239
RoHS: Compliant
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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.

Prices starting from US$0.14

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Logo for Avnet America Avnet America US$0.20
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Logo for Schukat Electronic Schukat Electronic US$0.34
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Logo for Farnell Farnell US$0.60
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Logo for element14 element14 US$1.05
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Logo for Transfer Multisort Elektronik Transfer Multisort Elektronik US$0.14
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Logo for Distrelec Distrelec US$0.14
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Logo for Avnet Silica Avnet Silica -
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Logo for EBV Elektronik EBV Elektronik -
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Logo for Newark Electronics Newark Electronics US$0.96
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Logo for Future Electronics Future Electronics US$0.22
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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

Comparator Quad ±16V/32V 14-Pin SOIC Tube | Avnet America
IC: comparator | Transfer Multisort Elektronik
ST Comparator, Low Power, Single / Dual, 36V, SOIC | Distrelec
Comparator Quad ?16V/32V 14-Pin SOIC Tube | Avnet Silica
LM239 Series 32 V 400 nA Surface Mount Quad Differential Comparator - SOIC-14 | Future Electronics

LM239D Amplifiers & Comparators by Texas Instruments


Status: Unknown
Series: -
RoHS: Unknown
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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 Low Power
No. of Comparators 4 Comparators, 4
Response Time 300ns
Supply Voltage Range ± 1V to ± 18V
Comparator Case Style SOIC
No. of Pins 14Pins
IC Output Type CMOS MOS Open Collector / Drain TTL
Operating Temperature Min -25°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

LM239 quad 0.3uS comparator, SOIC14 | RS
4xComp +-18V 300ns SO14 | Schukat Electronic
Low Power Comparator, 300Ns, Soic-14 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM239D?

Additional datasheets, footprints and schematics for LM239D are listed on our Part Details page. You can also find images and similar parts to LM239D on this page.

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What category does LM239D fall under?

The LM239D is listed under Amplifiers and Comparators > Comparators > Standard Comparators.

Can I view similar or alternative parts?

You can view similar parts to LM239D when available in the Standard Comparators range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the LM239D you can contact the distributor directly for product support, shipping queries etc.

Is the LM239D RoHS compliant?

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

Which authorised distributors for LM239D have stock available?

Authorised distributors including RS, Avnet America, Schukat Electronic, Farnell and element14 have stock available or on a lead time for LM239D.

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