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Name: LM339DT
Brand: STMicroelectronics
SKU: LM339DT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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STMicroelectronics LM339DT

Part No.:: LM339DT

Manufacturer:: STMicroelectronics

Package:: 14-SOIC (0.154, 3.90mm Width)

Datasheet:: LM339DT.pdf

Description:: IC COMPARATOR LP QUAD 14-SOIC

In Stock:: 32133

Quantity:: Add To Cart

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LM339DT Typical application Circuitry

LM339DT

The LM339DT is a model in the LM339 series of integrated circuits, notable for their quad differential comparators. These comparators are designed to compare voltages across multiple channels and provide digital output signals to indicate the result of these comparisons. The LM339 series, including the LM339DT, is extensively utilized in various electronic applications requiring precise voltage comparison, such as in sensor interfacing, voltage level detection, and control systems.

1. Pin Configuration: The LM339DT typically comes in a SOIC (Small Outline Integrated Circuit) package with 14 pins. This includes four comparator units, each with an inverting (IN-) and non-inverting (IN+) input, as well as individual outputs. Additionally, there are pins for VCC (positive power supply) and GND (ground).

2. Power Supply Connections: The GND pin is connected to the ground, while the VCC pin is connected to the positive power source. The LM339DT can operate with both single and dual power supplies, and it's important to ensure that the supply voltage is within the IC's specified operational range.

3. Input Connections: An inverting input and a non-inverting input are the two inputs that each comparator possesses. The comparator outputs a signal based on the voltage comparison between these two inputs, indicating which input is higher.

4. Output Connections: The outputs of the LM339DT are open-collector, requiring external pull-up resistors to provide a high output level. The output state changes based on the relative voltages at the inverting and non-inverting inputs.

5. Comparator Functionality: The LM339DT is used in applications that require voltage level detection and comparison. Each comparator's output will switch states depending on the relative voltages at its inverting and non-inverting inputs, making it suitable for digital decision-making based on analog signals.

6. Circuit Protection: Including protection mechanisms like current limiting resistors is advisable, especially when interfacing with other components that might be sensitive to higher currents.

7. Layout Considerations: In designing a circuit with the LM339DT, it's important to consider the routing of inputs and outputs to minimize noise and interference, especially in analog signal paths.

Designing with the LM339DT involves careful attention to detail to ensure it functions effectively as a voltage comparator. The LM339DT's ability to provide accurate voltage comparisons across multiple channels makes it a valuable component in various electronic applications, especially in systems where digital decision-making is based on analog signals.

LM339DT information

LM339DT Specifications

Package/Case:
14-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
General Purpose
NumberofElements:
4
OutputType:
CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±):
2V ~ 32V, ±1V ~ 16V
Voltage-InputOffset(Max):
5mV @ 30V
Current-InputBias(Max):
0.25µA @ 5V
Current-Output(Typ):
16mA @ 5V
Current-Quiescent(Max):
2.5mA
CMRRPSRR(Typ):
-
PropagationDelay(Max):
-
Hysteresis:
-
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

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6. What is the process for return or replacement of LM339DT?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM339DT we delivered, we will accept the replacement or return of the LM339DT only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of LM339DT.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations