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TLV803: Asking for the TLV803 power on waveform noisse

Part Number: TLV803

Hi Team,
Here is the cusotmer schematic and waveform.
Could you please check why channel 2 has ripple noise at VDD rising moment?


BR,
SHH

  • SHH,

    TLV803 is open-drain output type so you must use a pull-up resistor to VDD of at least 10-k ohm. The larger the resistor, the better it will help with output noise.

    Also, you can add a decoupling capacitor to decouple noise from input to output by adding a capacitor from VDD to GND right near VDD input pin.

    Please make these two modifications and let me know if the noise continues. Thanks!

    -Michael