JAJSGG2C October 2018 – June 2019 ADS125H02
Read the high-voltage power supply by selecting the voltage with the input multiplexer. The supply voltage is divided by 36 for measurement in order to reduce the voltage to within the PGA input range. Equation 3 shows the supply voltage scaling.
Measure the high-voltage power supply using the internal or external reference. To measure, set the PGA gain to 1 and disable the auto-zero mode. Write 100b to the MUX[2:0] control bits and then start a new conversion.