MAX6675 K-Type Thermocouple Temperature Sensor Module – SPI Interface

The MAX6675 is a digital thermocouple interface module designed for accurate high-temperature measurement using K-type thermocouples. It integrates cold-junction compensation and a precision amplifier, providing direct digital temperature output via SPI without requiring analog inputs. The module operates at 3.0–5.5 V and ensures stable performance across a wide temperature range. Its compact form factor and simple pin interface make it suitable for embedded systems and microcontroller-based projects. Ideal for industrial monitoring, laboratory experiments, and temperature control applications.

• MAX6675 thermocouple-to-digital converter
  
• Supports K-type thermocouples only
  
• Integrated cold-junction compensation
  
• SPI digital output interface
  
• 12-bit temperature resolution
  
• Wide measurement range up to 1024 °C
  
• 3.0–5.5 V power supply compatibility
  
• Stable operation for embedded systems
  

• Operating Voltage: 3.0–5.5 V DC
  
• Operating Current: 50 mA
  
• Thermocouple Type: K-Type only
  
• Temperature Measurement Range: 0 °C to 1024 °C
  
• Operating Temperature: −20 °C to 85 °C
  
• Resolution: 12-bit digital output
  
• Interface: SPI (GND, VCC, SCK, CS, SO)
  
• Cold Junction Compensation: Integrated
  
• Dimensions: 25 × 15 mm

• MAX6675 IC Datasheet
• MAX6675 SPI Thermocouple Amplifier and Thermocouple 3D Module

• Temperature Sensor with Arduino - K-Thermocouple Sensor MAX6675 Module
  
• Multiple Max6675 Arduino, Industrial Temperature Monitor using K type thermocouple & Oled display