• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 785 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.

Original question:

ADS127L01EVM: Issues changing the clock speed with Delta Sigma EvaluaTIon Software and other questions

ADS127L01EVM: Need to know the Data calculation formula of ADS127L01 Excel tool and other questions

T S S SAI PRASAD B
Prodigy 170 points
Part Number: ADS127L01EVM
Other Parts Discussed in Thread: ADS127L01

Hi Rayn,

We need to know the exact calculation for ADS127L01. As per the datasheet it is mentioned as 1LSB=(2*vref)/2^24=+FS/2^23. We also downloaded ADS127L01 Excel tool file which was provided by TI. We got the sampled value as 0X292729 with VREF as 2.5v. We got the output voltage as 0.80377V as expected. We would want to have more details on the formulae what are you applying in that excel file. Can you please help me by giving row by row formula.

Thank you,

Best Regards,

Teja

  • 0
    TI__Guru 66206 points
    Hello,

    Thanks for your post.

    The LSB size is calculated exactly as you described. To compute the Voltage Reading output, we simply convert the hexadecimal code to a decimal equivalent and multiply by the LSB size.

    If you need to look at the Excel formulas themselves, you can unprotect the sheet and workbook under the Review tab.

    Best Regards,