Hello E2E Team
I have a problem with a tmp422. Under EMI condition (Radiated Radio Frequency Susceptibility 600MHz -800MHz ) my circuit measures wrong temperatures at the DX3/DX4 Sensor. The real temperature is ~40°C but the measured temperature at DX3 DX4 is up to 110°C . Have you heard about such problems from others. Is it a problem to have ~23cm track length? Can you advise a better solution to implement a less EMI insensitive circiut?
Distance Transistor Sensor2 to TMP422 ~40mm
Distance Transistor Sensor3 to TMP422 ~230mm
Problem: Real temperature ~40°C vs. measured temperature at DX3 DX4 +110°C during EMI 600MHz-800MHz with 110V/m
Thank you for your help
Regards
Stephan