The MAX31855 performs cold-junction compensationand digitizes the signal from a K-, J-, N-, T-, S-, R-, orE-type thermocouple. The data is output in a signed14-bit, SPI-compatible, read-only format. This converterresolves temperatures to 0.25NC, allows readings as highas +1800NC and as low as -270NC, and exhibits thermocoupleaccuracy of ±2NC for temperatures ranging from-200NC to +700NC for K-type thermocouples. For fullrange accuracies and other thermocouple types, see theThermal Characteristics specifications.
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