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    Part Img LM339D datasheet by Texas Instruments

    • LM339 - Quad Differential Comparator 14-SOIC 0 to 70
    • Original
    • Yes
    • Obsolete
    • EAR99
    • 8542.39.00.60
    • 8542.39.00.60
    • Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

    LM339D datasheet preview

    Datasheet Impression

    LM339D Price & Stock

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    1,252 4
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    39
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    LM339D Frequently Asked Questions (FAQs)

    • The maximum voltage that can be applied to the input pins is the supply voltage (VCC) + 0.3V. Exceeding this voltage can cause damage to the device.
    • To prevent oscillation, ensure that the input signals are properly filtered and decoupled, and that the output is properly loaded. Additionally, adding a small capacitor (e.g. 10nF) between the output and ground can help to reduce oscillations.
    • The minimum input voltage required for the comparator to function correctly is typically around 1.5V to 2V, depending on the specific application and noise conditions.
    • No, the LM339D is a comparator, not a voltage regulator. It is designed to compare two input voltages and output a digital signal, not to regulate voltage.
    • The pull-up resistor value depends on the specific application and the load connected to the output. A general rule of thumb is to choose a value between 1kΩ to 10kΩ, but this may need to be adjusted based on the specific requirements of the application.
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