Hi guys,
maybe my experience will help someone.
So, I've spend a lot of time to solve temperature fluctuation and error type: MINTEMP err
I cursed AD597 - huge amount of electric noise was collected by a thermocouple, when I turned on stepper motors that was unacceptable at all, also problem will rise when you have not good power supply with big high frequency noise.
I will skip my all attempts with wrong wiring etc how its was says on many forums, so the main error in wrong datasheet and controller AD597 design itself.
The solution is simple - Instead of grounding pin (8) of chip, you m
