I have a doubt regarding Conversion formula for SD24 module.
Voltage=Vref*Digital value/FS value
1.When using Internal Reference, Vref for SD24 module is ~1.2V (1.151).
But VREF module does not generate 1.2 V it generates 1.5 V, 2.0 V, or 2.5 V
So while converting the acquired signal to Voltage, Vref value used should be 1.2 or 1.5V ?
2.Full scale value of the Digital Filter is given by
FS = 2^(3×log2(OSR)).
When OSR =607,
FS=223648543(0x0D54 9B1F), Which is a 28 bit value.Since this is a 24 bit ADC do we have to discard the last 4 bits.
If we are not discarding the last 4 digits, Which value do we have use in the conversion formula 2^28 or FS value(0x0D54 9B1F).
Data is in twos-complement mode (SD24DFx = 01b) with right alignment (SD24ALGN = 0).