Part Number: ADS125H01 Tool/software: Hello, I am having an issue with the output conversion from ADS125H01. I am applying a 49 mV differential signal at input (+5.030 V to AINP, +4.981 V to AINN), and at the output after conversion I am receiving approximately 88 mV. I not sure why the difference. Below is my setup and calculations. AVDD +5 V DVDD +3.3 V HV_AVDD +12 V HV_AVSS GND REFP +5 V REFN GND MODE0 Register set for 40 kSPS MODE1 Register set for Pulse-conversion MODE4 Register set for Input External (AINP – AINN) and PGA Gain 1 REF Configuration Register set for External Reference (REFP – REFN) for a VREF = 5 V SPI Reading approximately 0x2428a which equals 148,106. (SPI reading) x (VREF / 2(23)) = voltage reading 148,106 x (5V / 8,388,608) = 88 mV. I have been monitoring Registers Status0 and Status1 and I do not see any errors. I am not sure what I am doing wrong, any help would be appreciated.
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