reference voltage of sigma-Delta ADC in H1D


Is the SBIAS used for a reference voltage of SDADC?

If I set the value as 0.9V in single-ended mode, can I just calculate as follows for transferring the ADC value to voltage?

1unit = 0.9 / 0xFFFFFF; //SBIAS(0.9V) / 24bit(0xFFFFFF) = 0.05364418349529406uV

1unit = 1.8 / 0xFFFFFF; //SBIAS(1.8V) / 24bit(0xFFFFFF) = 0.1072883669905881uV


Do I have to use the max input voltage?


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