Theremocouples have a very small voltage of around 0.4mV/10C.
K Type Thermocouple Voltage Table
I want to amplify that signal so I can read it with an ADC on my Arduino Microcontroller. The Voltage would be GND to +5V. Will the GS8332 IC do the job?
I am not sure because I don't see any CMVR data in there (first time reading OP-Amp Datasheets). The Offset Voltage is only 10uV so thats good. But could it be that there is more that I need to keep in mind?