Dear Team,
I m having an issue with measuring analog millivolts in the range of 0 mV to 2400mV on SD0P0, SD1P0, SD2P0.
There is a difference of 28-35mV offset between the value measured by Digital Multimeter and ADC count given by controller.
VREF (PIN 11) of microcontroller is connected to SD0N0, SD1N0, SD2N0 considered as mid point which is 32767 counts.
Here is a output waveform measured at SD0P0 with respect to Vref
Kindly refer the schematic given below.
