• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 132 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.

TMP421: how to measure -64C ~ +191C?

Alan Chang
Intellectual 2320 points
Part Number: TMP421

Hi sirs,

   My customer would like to know how measure -64C ~ +191C on TMP421. On data sheet, page 11

    "This configuration allows measurement of temperatures as low as –64°C, and as high as +191°C". 

  if I change bit 2 ( Range) in Configuration Register 1 to high from low, the temp. range is -55 ~+150C only. so what should I change to get -64C measurement?

  • 0
    TI__Guru* 91206 points

    Dear Alan - 

    Thanks for posting, as indicated on page 11 of that datasheet - The device can be set to measure over an extended temperature range by changing bit 2 (RANGE) of Configuration Register 1 from low to high, and referring to Table 1, Extended Binary section.