Hello,
I use INA128 for PAC solution, and there is a phenomenon that INA128 is not working.
The symptom is as below.
- the voltage of pin 5 & pin 6 doesn't change when the voltage of pin 2 & pin 3 is changed.
- this occurs only when just power on, and it starts normal output over time.
My circuit received an input voltage from the TC sensor and amplified by the INA128, and transfer this signal to AD converter.
I wonder whether certain stress conditions influence when that happens. (e.g. high temperature..)