• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 421 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.

DAC161S997 TUE specification

Marcello Gobita14
Prodigy 50 points
Other Parts Discussed in Thread: DAC161S997, DAC161P997

Hi everybody,

We are selecting a 4 to 20 mA output dac.
We need to compare DAC161S997 with AD5421C.
The data sheet of AD5421C reports a TUE measured with internal reference and from -40 to +105 °C.
The TUE reported in the DAC161S997 data sheet is measured @ 25°C.
Questions:
1)does it include the errors of the internal voltage reference?
2)how should I calculate the TUE from -10 to +40 °C? Is it enough to calculate and sum the offset drift and the gain drift according to RSS, or are there other contributions?
3)If the answer to the first question is no, where do I find the initial error and the temperature drift of the internal voltage reference?

Thank you for any help.

  • 0
    TI__Genius 16890 points

    Hello Marcello,

    The TUE should include the internal voltage reference.  Unfortunately we do not have a spec for TUE over temperature.  This part was only specified at 25C.  If you can use the DAC161P997, it has more specifications done over temperature. 


    Mike