• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 47 subscribers
  • Views 236 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.

DAC80502: DAC output under improper configuration

diverger
Expert 1520 points

Part Number: DAC80502

The DS says:

Improper configuration of the reference divider triggers a reference alarm condition. In this case, the reference buffer is shut down, and all the DAC outputs go to 0 V. 

So, this means it won't obey the configuration of 'RSTSEL' pin in this case? Right?

  • +1
    TI__Guru** 100775 points

    Hi,


    Your comment is correct. If the reference divider is improperly configured, the output will not go to the configuration of the RSTSEL pin. 

    One way to think about it is that as an alarm condition the reference buffer is shut down and goes to 0V. That would mean that even if the DAC code is at midscale, the output would still be 0V.

    Joseph Wu

  • 0 in reply to Joseph Wu
    Expert 1520 points

    Thanks for your confirmation. Though I think this may be not *safe* in some situation. IMHO, it should obey the setting of 'RSTSEL' pin Slight smile.