What is the Additional Feature ?

Name: LM339DR
Brand: Texas Instruments
SKU: LM339DR
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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Texas Instruments LM339DR

Part No.:: LM339DR

Manufacturer:: Texas Instruments

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

Datasheet:: LM339DR.pdf

Description:: IC QUAD DIFF COMP 14-SOIC

In Stock:: 2093

Quantity:: Add To Cart

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LM339DR Specifications

Package/Case:
14-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
-
ProductStatus:
Active
Type:
Differential
NumberofElements:
4
OutputType:
CMOS, MOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±):
2V ~ 30V, ±1V ~ 15V
Voltage-InputOffset(Max):
5mV @ 30V
Current-InputBias(Max):
0.25µA @ 5V
Current-Output(Typ):
20mA
Current-Quiescent(Max):
2.5mA
CMRRPSRR(Typ):
-
PropagationDelay(Max):
-
Hysteresis:
-
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

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LM339DR information

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LM339DR Typical application Circuitry

LM339DR

The LM339DR is part of the LM339 series of integrated circuits, known for their quad differential comparators. These comparators can function from a single power source throughout a broad voltage range, and they can also function from two suppliers. The LM339 series, including the LM339DR, is widely used in various applications for comparing voltages that occur at two inputs and providing a digital output to indicate the larger input.

1. Pin Configuration: The LM339DR typically comes in a SOIC (Small Outline Integrated Circuit) package with 14 pins. The pins include four pairs of inverting (IN-) and non-inverting (IN+) inputs for each comparator, one output for each comparator, VCC (positive power supply), and GND (ground).

2. Power Supply Connections: The GND pin is linked to ground, and the VCC pin is connected to the positive power source. The LM339DR may run on a single power source or two supplies simultaneously. It's crucial to make sure the supply voltage is within the IC's defined range.

3. Input Connections: Each comparator has an inverting and non-inverting input. The voltage levels at these inputs are compared, and the comparator output changes state based on which input is higher.

4. Output Connections: The outputs of the LM339DR are open-collector, which means they can sink current but cannot source it. Therefore, a pull-up resistor is typically connected to each output to pull the output high when the comparator is not sinking current.

5. Comparator Functionality: The LM339DR is used in applications where voltage levels need to be compared, such as in sensor interfacing, voltage level detection, and window comparators. Depending on how the voltages at each comparator's inputs compare, each comparator's output either goes high or low.

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

7. Layout Considerations: When laying out a circuit with the LM339DR, it's important to consider the routing of inputs and outputs to minimize noise and interference, especially in analog signal paths.

Designing with the LM339DR involves careful planning and precise implementation of each pin connection to ensure efficient and reliable comparator operation. The LM339DR's ability to provide accurate voltage comparisons makes it a valuable component in a variety of electronic applications, especially in systems where digital decision-making based on analog signals is required.

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6. What is the process for return or replacement of LM339DR?

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 LM339DR we delivered, we will accept the replacement or return of the LM339DR 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 LM339DR.

(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