Hi, i'm working with the ATSAM20DJ18A (using ASF) and i'm doing some temperature monitoring. But it seems like I'am stucked at 169 degre celsius. Is there a way maybe by changing the ADC reference to mesure 200 degre celsius?
Regards,
Hi Ivar,
You tried to @mention me but it didn't work . I also experience this sometimes.
I just want to echo @Goodwin's comment on being careful with high temperatures. The device has an absolute operating temperature range of -40°C to 85°C where it is guaranteed to work. Running the device outside this range can lead to all sorts of issues and unknown behavior, especially on the analog side. So even though it is theoretically possible to measure 200+°C , you can not be sure that the value you are reading on the ADC is in fact the correct value.
For the U package grade, ambient temperature (TA) range = -40 to 85 °C, the maximum junction temperature (TJ) is 100 °C for the characteristics of the device to be valid.
For the N package grade, ambient temperature (TA) range = -40 to 105 °C, the maximum junction temperature (TJ) is 145 °C for the characteristics of the device to be valid.
Beyond the corresponding temperature rating of the MCU, the temperature sensor characteristics may deviate sharply from my previous computation and there's no assurance to the functional operation of every section of the MCU.
Goodwin