We are using the AD8231-EP for an application which may result in the input voltage of the instrumentation amplifier exceeding its power supply. Currently we are planning to use resistors in series to limit the current into the input pins.
I have two questions:
- Will this method sufficiently protect the part form being damaged?
- What should the current going through the input ESD protection diodes be limited to? From my pervious experience typically this is 10mA, however, for this part it is not mentioned in the datasheet.