Hi,Sir:
MAX31855 EMI\ESD issue tracking as below description.
1. The oscilloscope show sawtooth wave between GND and T+.
2. The oscilloscope show pulse wave between GND and T-.
3. OS output display abnormal temperature reading when the figure touch the end of thermo couple .
How to solve the question?(by IC 、 OPA or other method)
We are look forward to anyone reply.
Many thanks and wish you all the best!!