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ADS1298 - Intermittent Noise

Other Parts Discussed in Thread: ADS1298

Hello,

I developed a board using the ADS1298 based on the TI MDK reference design. I am seeing some interesting behavior occur intermittently shown in the screenshots below on V3. It's not contained to a particular lead and it doesn't occur regularly. Signals below taken from a test with electrodes attached to myself. The signal usually recovers but I obviously want to resolve this issue. I'm having difficulty finding the source of this behavior, Has anyone seen something like this and have a suggestion for how to test & resolve? Thank you.

  • Hey Hussam,

    To determine if the noise is actually present at the inputs, I'd start by probing the inputs with an oscilloscope. If you can't see it at the inputs, then the data is likely getting distorted somewhere in software.

    Regards,
    Brian Pisani