Hi all,
We are using ADS1158 in one of our designs.
We are referring to the Table 7 of the datasheet to calculate one LSB.
We are using a reference of 4.096V in our design.
If we calculate the LSB as per entry 3 of the Table 7, then 1 LSB = (1.06*4.096V) / (7FFFh) = 133.333uV.
But as per the second entry of the table, then 1 LSB = (4.096) / (7800h) = 132.504uV.
Which one of this is correct ?
If we go by the first calculation then 4.096V i.e. Vref should correspond to 77FFh rather than 7800h.
Please clarify.
This is very critical for us since we are designing a system whose measurement accuracy should be 2mV.
Looking forward to your response.
Thanks,
Suresha N S
