• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 48 subscribers
  • Views 1002 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

ADS1291: ADS1291

raji a
Prodigy 210 points

Part Number: ADS1291

I have a hardware issue in the board.  During power-up and system reset condition , the AVDD voltage   of the ADS1291 is around 2.3V.

Once the system is initialised ( a few seconds) the IC will have a normal supply voltage of 3V.

Will this condition damage the IC ?

As per the datasheet the IC requires a minimum of 2.7V.  

  • 0
    TI__Mastermind 38745 points
    Hello Raji,

    Have you measured the current on AVDD? It could be that the power supply is failing rather than the ADS1291. Perhaps some other IC is drawing a lot of current. If you measure the AVDD current of ADS1291 and it is much higher than what is in the datasheet, then it is possible it could have been damaged. If it looks normal, then you should look at other part on the board to see if that one is drawing a lot of current.

    Brian