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MAX6675 Series Datasheet

MAX6675

Temperature sensor chip

The MAX6675 cold junction temperature compensation and thermocouple-digital converter can perform cold junction temperature compensation and convert the K-type thermocouple signal into a digital signal. With a built-in 12-bit analog-to-digital converter analog-to-digital converter (ADC). Data output is in 12-bit resolution, SPI compatible, read-only format. The temperature resolution of the converter is 0.25°C, the temperature can be read up to +1024°C.

MAX6675 Data sheet.pdf

MAX6675 Pin Configuration and Function

MAX6675Pin Configuration and Function

Pin Number	Pin Name	Description
1	GND	Ground
2	T-	Alumel Lead of Type-K Thermocouple.Should be connected to ground externally.
3	T+	Chromel Lead of Type-K Thermocouple Positive Supply. Bypass with a 0.1μF
4	VCC	Positive Supply. Bypass with a 0.1μF capacitor to GND.
5	SCK	Serial Clock Input
6	CS	Chip Select. Set CS low to enable the serial interface.
7	SO	Serial Data Output
8	N.C.	No Connection