With the 1nA max DC draw by the input amplifiers, the addition of series resistors to thermocouple inputs can protect from ESD events. What would be a recommended circuit to protect against defibrillation pulses in a medical application? Defib pulse of 2KV with 65 J through a 50 ohm limiting resistor.
Please see my LTJournal article on how to size appropriate protection resistances and some more background on the issue: https://www.analog.com/media/en/technical-documentation/lt-journal-article…
Please see my LTJournal article on how to size appropriate protection resistances and some more background on the issue: https://www.analog.com/media/en/technical-documentation/lt-journal-article/LTJournal-V27N1-00-df-LTC298x-LoganCummings.pdf
Unfortunately, at 2kV the required resistances will still incur a signification IR drop at 1nA maximum leakage current from the LTC298X. A preferred solution would be to install a small series protection resistance, say 2Kohm surge rated, along with a low-leakage TVS at the input ahead of the 2K resistance. I will follow-up with you offline for part recommendations.