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ADS1299-4: ADS1299 Power Sequencing

Myles Scott
Intellectual 390 points

Part Number: ADS1299-4

On my design I have ~4.25V on all of the differnital inputs with 4.99k inline series resistors.  This voltage is present for a few seconds before my AVDD comes up (5V).  I'm assuming these resistors are enough to limit the ESD diodes leakage to an acceptable level? 

  • 0
    TI__Guru 68916 points

    Hi Myles,

    It would be best to make the necessary changes in your system to avoid applying any input signal before the device supplies have ramped. The part may survive and perform nominally at first, but we cannot guarantee that such overstress will not degrade the input over time.

    Regards,

    Ryan