I get wrong temperature value when I read out the internal temperature sensor in the AD7699.
The environmental temperature is about 25 degrees Celsius. According to the data sheet should the voltage be approximate 283mV. I read out 262,5 mV (dac value 4200 with internal Vref 4.096V). That should equals to 4,5 degree Celsius.
I have also measured a voltage on one of the AD input to verify that I use the AD7699 correct . That works OK.
Can somebody help me with temperature measurements with AD7699?