K-type thermocouple front-end with cold-junction compensation on-chip
It includes cold-junction compensation inside the package, so you don't need an external reference junction or amplifier — just connect the thermocouple wires to the input pins, power it at 1.5 mA, and read temperature data over SPI.
The supply current is 1.5 mA typical. That's low enough to run off a microcontroller's regulated output pin or a small LDO, which simplifies the BOM for isolated or battery-backed designs. No need for a separate power supply branch — just one decoupling cap on the VCC pin.
The MAX6675ISA+T has an Active lifecycle status.