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AD7190 Drift problem

Question asked by meerkat on Jun 23, 2018
Latest reply on Jun 25, 2018 by JellenieR

Hi 

We are using AD7190 in our project. The problem we have got is ADC output  data is drifting within 

time.

Here is the data out put after power up during 50   seconds:

The inputs are shorted to GND, and this is ADC configuration :

AD7190_Write_Reg(Config,AIN3_AIN4|Gain128|Bipolar|Enable_BUF);
AD7190_Write_Reg(mode,Continuous_Conversion);

 

Here is also my schematic:

 

I would appreciate for any help.

Regards. 

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