Cold-Junction-Compensated K-Thermocouple-to-Digital Converter (0°C to +1024°C)

The MAX6675 performs cold-junction compensation and digitizes the signal from a type-K thermocouple. The data is output in a 12-bit resolution, SPI™-compatible, read-only format.

This converter resolves temperatures to 0.25°C, allows readings as high as +1024°C, and exhibits thermocouple accuracy of 8 LSBs for temperatures ranging from 0°C to +700°C.

The MAX6675 is available in a small, 8-pin SO package.

Applications

* Appliances * HVAC * Industrial

* Direct Digital Conversion of Type -K Thermocouple Output

* Cold-Junction Compensation

* Simple SPI-Compatible Serial Interface

* 12-Bit, 0.25°C Resolution

* Open Thermocouple Detection