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AD4111 Incorrect Readings


We are using the EVAL-AD4111SDZ, using single ended for CH0, so when we apply the input voltage and hold it, we read the data register and that data keeps changing (not stable) even the Vin is the same, when we start form 0Vin and we keep reading the value it stays in Zero, but when the Vin is higher than 0 the data changes dramatically, when we return the voltage to 0 ti keeps reading the data as if it were higher voltage.

So i want to ask if you have an Application Note to configure the AD4111 and make the calibrations right, we already have the User Manual for AD4111 but we have some doubts.