Other Parts Discussed in Thread: ADS1248Hi everybody I am trying to measure K or J type thermocouples with ADS1248, some of this thermocouples are "Grounded" and some other are "Ungrounded". Also i ...

You should adjust R1 so that V1 equals the thermocouple's Seebeck coefficient and R2 so that V2 equals the V1 output at 0°C. (For J-type thermocouples, R1 = 5360Ω and R2 = 1180Ω.) For proper operation ...