• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 146 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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:

ADS1292R: ADS1292R register settings example for Respiration and ECG

ADS1292R: How to choose phase shift value

Gabriel Wang1
Genius 4495 points
Part Number: ADS1292R

Tool/software:

Dear Expert

The respiratory impedance of 1292, with the same circuit, some machines have larger AC peak to peak impedance waveforms with the same mean. Changing the phase shift from 135 ° to 0 ° can result in a decrease similar to that of a normal machine. How can we determine the most suitable value for this phase shift? Please advise.

  • 0
    TI__Guru 64236 points

    Hello Gabriel,

    Thank you for your post.

    Generally speaking, the phase setting is based on the R-C time constant of the respiration receive signal chain. The applications section in the ADS1292R data sheet has recommended combinations for Gain and Phase settings.

    Can you share your ADS1292R schematic to show the complete signal path for RESP_MODP/N and the input electrodes? What are you using as a test signal source?

    Regards,

    Ryan