To whom may it concern,
I have a problem with measuring RTD by using the 4-wire method.
The value of RTD's resistance changed depending on the measuring current.(Due to P= I^2 * R)
Currently, I use normal mode operation, 20SPS(lowest sampling data rate), and single-shot conversion.
1) After doing 20 samplings, would IDAC turn off until another START/SYNC command?
2) shngle-shot conversion mode, 20SPS actual conversion time is 50.01ms. During 50.01ms, would IDAC flow continuously?
3) After the single-shot conversion, ads122c04 gets into the low-power state. Is it different compare to the power-down mode in the perspective of IDAC?
4) Could you advise any other recommendations about this problem?
Regards,
JUN HYEOB - LEE