LM239QT Comparators by STMicroelectronics

Low power quad voltage comparator


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.

Where to Buy

Prices starting from US$0.18

Distributor Stock
Logo for Rochester Electronics
Rochester Electronics
from US$0.20
3,000
in stock
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Logo for Newark
Newark Electronics
from US$0.22
1,344
in stock
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Logo for Farnell UK
Farnell
from US$0.24
1,344
in stock
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Logo for Future Electronics NA
Future Electronics
from US$0.18
0
in stock
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Logo for Avnet America
Avnet America
from US$0.18
0
in stock
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Logo for TME
TME
from US$0.24
0
in stock
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Logo for EBV Elektronik
EBV Elektronik
-
0
in stock
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Logo for Avnet Silica
Avnet Silica
-
0
in stock
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Features

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

Last 6 months Inventory & Pricing History


Alternative Descriptions

Comparator, 1.3Us, -40 To 105Deg C Rohs Compliant: Yes |Stmicroelectronics LM239QT | Newark Electronics
COMPARATOR, 1.3US, -40 TO 105DEG C | Farnell
LM239 Series Quad 32 V 250 nA SMT Low Power Voltage Comparator - QFN-16 (3x3) | Future Electronics
Analogue Comparator, Low Power, 4 Channels, 1.3 ?s, 2V to 36V, ? 1V to ? 18V, QFN, 16 Pins | Avnet America
IC: comparator | TME
Analogue Comparator, Low Power, 4 Channels, 1.3 �s, 2V to 36V, � 1V to � 18V, QFN, 16 Pins | EBV Elektronik


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LM239QT?

Additional datasheets, footprints and schematics for LM239QT are listed on our Part Details page. You can also find images and similar parts to LM239QT on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LM239QT on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LM239QT price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LM239QT fall under?

The LM239QT is listed under Amplifiers and Comparators > Comparators > Standard Comparators.

Can I view similar or alternative parts?

You can view similar parts to LM239QT 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 LM239QT you can contact the distributor directly for product support, shipping queries etc.

Is the LM239QT RoHS compliant?

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

Which authorised distributors for LM239QT have stock available?

Authorised distributors including Rochester Electronics, Newark Electronics, Farnell, Future Electronics and Avnet America have stock available or on a lead time for LM239QT.

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

Stock availability and lead times will be displayed for LM239QT often in real-time on the comparison pages.

What if I can't find stock of LM239QT?

You can fill out our help required form which you can use to request a quote for LM239QT 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.