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Low power quad voltage comparator
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LM339DT by STMicroelectronics is a Comparator.
Comparators are under the broader part category of Amplifier Circuits.
Amplifier circuits use external power to increase the amplitude of an input signal. They can be used to perform linear amplifications or logarithmic functions. Read more about Amplifier Circuits on our Amplifier Circuits part category page.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
04X6364
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Newark | Precision Comparator, Quad, 1.3 Us, Soic-14, Full Reel, Comparator Type:Precision Voltage, No. Of Comparators:4 Comparators, Response Time:1.3Μs, Supply Voltage Range:2V To 36V, Comparator Case Style:Soic, No. Of Pins:14Pins Rohs Compliant: Yes |Stmicroelectronics LM339DT RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 1 Container: Reel | 5000 |
|
$0.1300 / $0.1370 | Buy Now |
DISTI #
26AM3780
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Newark | Std Amplifiers |Stmicroelectronics LM339DT RoHS: Not Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Reel | 0 |
|
$0.0760 | Buy Now |
DISTI #
497-1588-1-ND
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DigiKey | IC COMPARATOR 4 GEN PUR 14SO Min Qty: 1 Lead time: 8 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) |
27503 In Stock |
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$0.0892 / $0.2400 | Buy Now |
DISTI #
LM339DT
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Avnet Americas | Comparator, Low Power, Precision Voltage, 4-Channels, 2V to 32V, ? 1V to ? 16V, 14 Pins, SOIC - Tape and Reel (Alt: LM339DT) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 8 Weeks, 0 Days Container: Reel | 117500 |
|
$0.0709 / $0.0754 | Buy Now |
DISTI #
LM339DT
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Avnet Americas | Comparator, Low Power, Precision Voltage, 4-Channels, 2V to 32V, ? 1V to ? 16V, 14 Pins, SOIC - Tape and Reel (Alt: LM339DT) RoHS: Compliant Min Qty: 10000 Package Multiple: 2500 Lead time: 8 Weeks, 0 Days Container: Reel | 0 |
|
$0.0745 / $0.0796 | Buy Now |
DISTI #
511-LM339DT
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Mouser Electronics | Analog Comparators Lo-Pwr Quad Voltage RoHS: Compliant | 14471 |
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$0.0870 / $0.2400 | Buy Now |
DISTI #
E02:0323_00033371
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Arrow Electronics | Comparator Quad ±16V/32V 14-Pin SOIC T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 8 Weeks Date Code: 2446 | Europe - 1070000 |
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$0.1464 | Buy Now |
DISTI #
V36:1790_06548524
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Arrow Electronics | Comparator Quad ±16V/32V 14-Pin SOIC T/R RoHS: Compliant Min Qty: 5000 Package Multiple: 2500 Lead time: 8 Weeks Date Code: 2439 | Americas - 480000 |
|
$0.1512 | Buy Now |
DISTI #
E54:1762_06543574
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Arrow Electronics | Comparator Quad ±16V/32V 14-Pin SOIC T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 8 Weeks Date Code: 2449 | Europe - 57500 |
|
$0.0747 / $0.0882 | Buy Now |
DISTI #
V72:2272_06548524
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Arrow Electronics | Comparator Quad ±16V/32V 14-Pin SOIC T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 8 Weeks Date Code: 2331 Container: Cut Strips | Americas - 8343 |
|
$0.1527 / $0.2400 | Buy Now |
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LM339DT
STMicroelectronics
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Datasheet
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Compare Parts:
LM339DT
STMicroelectronics
Low power quad voltage comparator
|
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | STMICROELECTRONICS | |
Part Package Code | SOIC | |
Package Description | ROHS COMPLIANT, PLASTIC, MICRO, SOP-14 | |
Pin Count | 14 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.39.00.01 | |
Factory Lead Time | 8 Weeks | |
Samacsys Manufacturer | STMicroelectronics | |
Amplifier Type | COMPARATOR | |
Average Bias Current-Max (IIB) | 0.4 µA | |
Bias Current-Max (IIB) @25C | 0.25 µA | |
Input Offset Voltage-Max | 9000 µV | |
JESD-30 Code | R-PDSO-G14 | |
JESD-609 Code | e3 | |
Length | 8.65 mm | |
Moisture Sensitivity Level | 1 | |
Number of Functions | 4 | |
Number of Terminals | 14 | |
Operating Temperature-Max | 70 °C | |
Operating Temperature-Min | ||
Output Type | OPEN-COLLECTOR | |
Package Body Material | PLASTIC/EPOXY | |
Package Code | SOP | |
Package Equivalence Code | SOP14,.25 | |
Package Shape | RECTANGULAR | |
Package Style | SMALL OUTLINE | |
Packing Method | TR | |
Peak Reflow Temperature (Cel) | 260 | |
Qualification Status | Not Qualified | |
Response Time-Nom | 1300 ns | |
Seated Height-Max | 1.75 mm | |
Supply Current-Max | 2.5 mA | |
Supply Voltage Limit-Max | 32 V | |
Supply Voltage-Nom (Vsup) | 5 V | |
Surface Mount | YES | |
Technology | BIPOLAR | |
Temperature Grade | COMMERCIAL | |
Terminal Finish | Matte Tin (Sn) - annealed | |
Terminal Form | GULL WING | |
Terminal Pitch | 1.27 mm | |
Terminal Position | DUAL | |
Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
Width | 3.9 mm |
The maximum power dissipation of the LM339DT is 640mW, which is calculated based on the package thermal resistance and the maximum junction temperature.
To ensure stability, it's essential to add hysteresis to the comparator circuit, which can be done by adding a small amount of positive feedback from the output to the non-inverting input. This helps to prevent oscillations and ensure a clean output signal.
The recommended input impedance for the LM339DT is in the range of 1kΩ to 10kΩ. This ensures that the input signal is not attenuated and the comparator operates within its specified parameters.
While the LM339DT can be used as an oscillator, it's not the most suitable device for this application. The LM339DT is primarily designed as a comparator, and its output stage is not optimized for oscillation. For oscillator applications, a dedicated oscillator IC or a more suitable device like the 555 timer would be a better choice.
To protect the LM339DT from overvoltage and ESD, it's recommended to add external protection devices such as TVS diodes or zener diodes to clamp the input voltage and prevent damage from electrostatic discharge.