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Forum Post: RE: ADS1298R voltage calculation from adc value

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I have read the DATA FORMAT of ADS1298R which is

0                                                                       0

+Vref /  (2^23 - 1)                                           0x000001

>= +Vref /  (2^23 - 1)                                     0x7FFFFF

- Vref /  (2^23 - 1)                                           0XFFFFFF

<= - Vref /  (2^23/2^23 - 1)                            0X800000

the above is for Gain =1; and resolution 24 bit.

in that case of my process , i have set gain value is 6 and VREFP as 2.4 using the CONFIG3 reg.

and am getting below mentioned value

F750DE
F752ED
F74E09
F7483D
F74A4A
F75150

these are all 2's complement value .

whether i have to convert normal format or not ? for the process.

Could you please give one example  calculation for the above value ?


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