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

Product Details

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.

Key Features

  • Cold-Junction Compensation
  • Simple SPI-Compatible Serial Interface
  • 12-Bit, 0.25°C Resolution
  • Open Thermocouple Detection

Applications/Uses

  • Appliances
  • HVAC
  • Industrial

Simplified Block Diagram

MAX6675: Typical Application Circuit MAX6675: Typical Application Circuit Zoom icon

Design & Development

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Additional Resources
Temperature Family by Product Type

Description

The MAX6675 evaluation kit (EV kit) is an assembled and tested printed circuit board (PCB) that demonstrates the MAX6675 thermocouple digital temperature sensor. It accepts the input from a type-K thermocouple and converts the temperature to 12-bit data.

The MAX6675 EV kit connects to a computer for acquiring the data from the MAX6675. Windows® 95/98/2000/XP compatible software provides a user-friendly interface to display the 12-bit data and convert it to a temperature.

The EV kit includes a type-K thermocouple for evaluation up to +80°C.

To evaluate the MAX6674, order a free sample of the MAX6674ISA.

View Details

Features

  • Digitizes and Displays Temperature from a Type-K Thermocouple
  • SPI™-Compatible Serial Interface
  • Easy-to-Use Menu-Driven Software
  • Available in an 8-Pin SO Package
  • Fully Assembled and Tested
  • Includes Windows 95/98/2000/XP-Compatible Software, Demo PCB, and Type-K Thermocouple

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Support & Training

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Parameters

Key Features

  • Cold-Junction Compensation
  • Simple SPI-Compatible Serial Interface
  • 12-Bit, 0.25°C Resolution
  • Open Thermocouple Detection

Applications/Uses

  • Appliances
  • HVAC
  • Industrial

Description

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.

Simplified Block Diagram

MAX6675: Typical Application Circuit MAX6675: Typical Application Circuit Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.