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tl026 noise when input aty GND

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hi,

 

my customer uses the TL026C with differencial output and input to GND with +/-6V.

the output is connected to two serial cap of 150nF and with 2 K load.

the output is pretty noisy, could you explainit?

i have the sch and plots.

 

1 Reply

  • Kamal,

    The output is floating. Try replacing the 2k resistor with two 1k resistors in series then ground the node between the resistors.
    Measure noise. Then turn power to TL026 off and measure noise again (power off noise, not caused by TL026).

    Regards,
    Ronald Michallick
    Linear Applications

    TI assumes no liability for applications assistance or customer product design. Customer is fully responsible for all design decisions and engineering with regard to its products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning Customer's design. If Customer desires engineering services, the Customer should rely on its retained employees and consultants and/or procure engineering services from a licensed professional engineer (LPE).

     

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