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Name: LM239DR2
Brand: ON Semiconductor
SKU: LM239DR2
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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ON Semiconductor LM239DR2

Part No.:: LM239DR2

Manufacturer:: ON Semiconductor

Package:: -

Datasheet:: LM239DR2.pdf

Description:: IC COMP QUAD SGL SUPPLY 14SOIC

In Stock:: 3873

Quantity:: Add To Cart

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LM239DR2 Specifications

Package/Case:
-
Packaging:
Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Obsolete
Type:
-
NumberofElements:
-
OutputType:
-
Voltage-SupplySingle/Dual(±):
-
Voltage-InputOffset(Max):
-
Current-InputBias(Max):
-
Current-Output(Typ):
-
Current-Quiescent(Max):
-
CMRRPSRR(Typ):
-
PropagationDelay(Max):
-
Hysteresis:
-
OperatingTemperature:
-
MountingType:
-

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LM239DR2 information

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LM239DR2 Typical application Circuitry

LM239DR2

The LM239DR2 is a variant within the broad LM239 family, which encompasses quad differential comparators known for their reliability in voltage level sensing and comparison tasks. This device facilitates the execution of analog-to-digital conversion edges by contrasting voltages at its input leads and producing a digital output. It is designed for use with either a single power source or dual supply configurations, offering flexibility in a range of voltage environments.

1. Powering the Device:

- Pin 4 (GND) and Pin 11 (Vcc+): The LM239DR2's ground is connected to pin 4, and the positive voltage supply is linked to pin 11. These must be accurately connected to ensure the chip is properly energized for its functions.

2. Comparator Inputs:

- Pins 5, 6, 8, 9 (Non-Inverting Inputs) and Pins 2, 3, 12, 13 (Inverting Inputs): Each comparator within the LM239DR2 chip receives analog inputs, with the non-inverting and inverting signals fed into these specified pins respectively.

3. Driving Outputs:

- Pins 1, 7, 14, and 10 (Outputs): The LM239DR2 provides its comparative results via these output pins, which can either source or sink current depending on the comparator's result and the configuration of the external circuit.

4. Additional Circuitry:

- No Dedicated Feedback/Biasing Pins: While the LM239DR2 doesn't have internal biasing or feedback mechanisms, external circuit components can be connected to its inputs to set specific reference voltages or to create hysteresis for switching applications.

5. Ensuring Defined Logic Levels:

- Output to Logic Interface: Should the LM239DR2's output be connected to a high-impedance input, pull-up or pull-down resistors are necessary to ensure a stable and defined logic level when the comparator is in an off state.

In integrating the LM239DR2 into any design, it's paramount to refer to the latest datasheets to account for any revision-specific nuances and to ensure that the voltages applied to the inputs are within the recommended range to avoid potential damage to the device. Proper layout of the printed circuit board is crucial to minimize the path of high-frequency signals and reduce the effect of electromagnetic interference on the LM239DR2's performance. Decoupling capacitors should be placed near the power supply pins to filter out noise and stabilize the supply voltage for the device. Additionally, although power dissipation is typically low, ensuring adequate spacing for heat dissipation on the PCB can further enhance the reliability and accuracy of the LM239DR2.

LM239DR2 FAQ

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3. Are the LM239DR2 price and inventory displayed accurate?

The price and inventory of LM239DR2 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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6. What is the process for return or replacement of LM239DR2?

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 LM239DR2 we delivered, we will accept the replacement or return of the LM239DR2 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 LM239DR2.

(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