MAX6675 performs cold junction compensation and digitizes the signal from the K-type thermocouple. The data is output in a 12 bit resolution, SPI compatible, read-only format.
This converter parses temperature to 0.25 ° C, allowing readings up to+1024 ° C, and displays thermocouple accuracy of 8LSBs over a temperature range from 0 ° C to+700 ° C.
MAX6675 comes in a small, 8-pin SO packaging.
features
Direct digital conversion of K-type thermocouple
output
Cold end compensation
● Simple SPI compatible serial interface
12 bits, 0.25 ° C resolution
● Thermocouple open circuit detection
application
● Industrial
● Instruments
● Heating, Ventilation, and Air Conditioning