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Alternate of ADS1298R in a final product

muhammad ather
Intellectual 310 points
Other Parts Discussed in Thread: ADS1298R

Sir,

I was using ADS1298R Evaluation board for development of an ECG Machine but its user manual states that we can not use it in our end product. Kindly suggest any alternative for that or suggest what can we use for its safety if it is used as it is ?

  • 0
    TI__Mastermind 38745 points
    Hello Muhhammad,

    The ADS1298EECGFE-PDK board cannot be used as part of an end-product, but the ADS1298R (the chip, not the board) certainly may be used as part of a product that you design.

    Regards,
    Brian Pisani
  • 0 in reply to Brian Pisani
    Intellectual 310 points

    Thanks sir,

    But I want to know that is there any other board or something else that I may use in addition with this board to confirm safety of the equipment and the patient also without affecting the ECG ? Any isolation board etc ?

    Or even if I use the ADS1298R chip in my design, how can I ensure protection of chip and the patient ?

  • 0 in reply to muhammad ather
    TI__Mastermind 38745 points
    Hello Muhammad,

    I am not aware of any board you can pair with the EVM to ensure that the setup is safe to use with human patients. We did not pass the EVM through regulatory scrutiny for use with real patients so we legally cannot allow people to use it as part of an end equipment - it's only for evaluation of device features an performance.

    The ability of your end-equipment to pass regulatory muster is up to you :-). However, I can tell you that this device was made with medical applications and their various safety and performance standards in mind. We have other customers with products on the market that use the ADS1298R, so it's possible for this chip to be used as an ECG front-end in actual medical equipment that is deemed acceptable by the regulatory agencies in the localities where our customers operate.

    Regards,
    Brian Pisani
  • 0 in reply to Brian Pisani
    Intellectual 310 points

    Thanx Brian,

    It was a great help. Can you please guide that how can we  make the board defibrillator proof ?

  • 0 in reply to muhammad ather
    TI__Mastermind 38745 points
    Hey Muhammad,

    Protecting the circuit from defibrillator shock can be done using diode circuits - similar to other types of overvoltage protection. Typically this can be done with a bidirectional diode, with one shunting the input to AVSS and the other one shunting the input to AVDD. This way if the input voltage goes a little above either rail, it will get clamped before exceeding the maximum voltage for the chip.

    Regards,
    Brian Pisani
  • 0 in reply to Brian Pisani
    Intellectual 310 points
    Thanks Brian for your help and suggestions.