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ADC Count Drifting Problem in EVAL-ADuCM360QSPZ

Question asked by Abrar on Feb 22, 2014
Latest reply on Feb 24, 2014 by ABuda

Hi,

 

I am testing the ADC output with 'AdcExample' for EVAL-ADuCM360QSPZ.

The changes made in the program are

1. Gain Changed to 1

2. ADC Count added in UART string.

 

The DAC output is connected to the AIN1 , AIN0 to GND.

I have also removed the Jumper J6 & J7

 

The output drifts from

Voltage: 0.150397V

  2015A80

to

Voltage: 0.150511V

  201BE40

 

in the duration on 5mins and it keeps drifting .

 

My problem is that the output value is drifting with time.

attached below is file with readings.

 

Thank you

 

-Abrar

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