FAQs: MAX31855
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MIKROE-1197, Click Board, THERMO Click3/16/2023
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MIKROE-3724, Click Board, Thermostat 3 Click3/10/2023
MAX31855
Cold-Junction Compensated Thermocouple-to-Digital Converter
Accurate Thermocouple-to-Digital Converter IC Simplifies Designs and Lowers System Cost
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Overview
Features and Benefits
- Integration Reduces Design Time and Lowers System Cost
- 14-Bit, 0.25°C Resolution Converter
- Integrated Cold-Junction Compensation
- Versions Available for Most Common Thermocouple Types: K-, J-, N-, T-, S-, R-, and E-Type
- Detects Thermocouple Shorts to GND or VCC
- Detects Open Thermocouple
- Interfaces to Most Microcontrollers
- Simple SPI-Compatible Interface (Read-Only)
Product Details
The MAX31855 performs cold-junction compensation and digitizes the signal from a K-, J-, N-, T-, S-, R-, or E-type thermocouple. The data is output in a signed 14-bit, SPI-compatible, read-only format. This converter resolves temperatures to 0.25°C, allows readings as high as +1800°C and as low as -270°C, and exhibits thermocouple accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples. For full range accuracies and other thermocouple types, see the Thermal Characteristics specifications in the full data sheet.
Applications
- Appliances
- Automotive
- HVAC
- Industrial
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (3)
Documentation & Resources
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MAX31855 Reliability Data1/12/2023
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High-Performance Temperature Measurement Using Thermocouples and Precision Delta-Sigma ADCs, Part 22/24/2023
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High-Performance, High-Accuracy 4-20mA Current-Loop Transmitter Meets Toughest Industrial Requirements2/10/2023
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Modern Thermocouples and a High-Resolution Delta-Sigma ADC Enable High-Precision Temperature Measurement2/7/2023
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Analog Integration Drives Factory Integration3/21/2014
Tools & Simulations
Software Development
Product Recommendations
MAX31855 Companion Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
MAX31855 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.