This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS1299: Design question about ADS1299

Part Number: ADS1299

Dear Expert

At present, the product shape defined by the customer is as follows: the motherboard is in the red box, and the metal part circled in the red part of the earplug is the electrode. I have a question, because the current design of ADS1299 is on the motherboard, the distance from the electrode is between 25-30cm, whether there will be any problem with such a design?

  • Hi,

        It's very difficult to answer this kind of question like "whether there will be any problem with such a design" as a product design depends on many factors, variation, electrodes, subjects' skin conditions, mechanical, enclosures, materials, surroundings and environments.  And, any of this could affect the signal integrity and/or SNR.

        May I ask what problem does customer encounter or have in mind and want to avoid?

        Common solutions to improve signal integrity could be use battery powered design, equal length of the electrode cables, cables should be well shielded and grounded. Customer will need to do extensive search/research/trials&V&V to find the appropriate/suitable electrodes&cables for their applications. Use RLD/BIAS feature. Implement&Use Analog and/or digital filter.

       Does Customer have/use ADS1299 evaluation kit/board(EVM)?  It's recommended to start with the EVM.

       Has customer already built their own PCBA using the ADS1299?

    Thanks.

  • Hi,
    Since I did not hear back from you, I believe my suggestions answered your questions.
    I will close this post and if you have any pending questions, feel free to post them here or open a new thread.
    Thanks and have a great day!