Maxim Integrated's 1-Wire Thermocouple-to-Digital Converters Simplify Multisensor Industrial and Medical Designs

Maxim's converters integrate all the functions required for a complete and highly accurate thermocouple-to-digital solution.

SAN JOSE, Calif., July 10, 2013 — (PRNewswire) — Maxim Integrated Products, Inc. (NASDAQ: MXIM) today announced that it is now sampling the MAX31850/MAX31851 cold-junction-compensated, 1-Wire® thermocouple-to-digital converters. The devices achieve ±2.0°C accuracy (not including sensor nonlinearity) while integrating all of the functions required for a complete thermocouple-to-digital solution. Additionally, the MAX31850/MAX31851's 1-Wire interface allows multiple sensor locations to communicate and draw power over a single data line, greatly simplifying wiring requirements. Designers can use the MAX31850 or MAX31851 instead of multiple discrete components for accurate temperature measurement in medical, industrial, and solar applications.

Because thermocouple output voltages are small and cold-junction compensation is needed to achieve accurate results, the digitization of thermocouple signals can be a challenge. The MAX31850/MAX31851 are the industry's first solution to integrate a discrete analog-to-digital converter (ADC), a highly accurate reference, a temperature sensor for cold-junction compensation, and a 1-Wire bus interface into a single chip. The versatile converters operate with several types of thermocouples, speeding system design, lowering system cost, and reducing the bill of materials (BOM). The MAX31850/MAX31851 also identify open or shorted thermocouples that could result in erroneous temperature readings or system faults. A microcontroller can read the fault status at any time to help ensure uptime and prevent costly repairs.

Key Advantages

  • High integration and accuracy: converters achieve ±2.0°C accuracy while combining multiple discrete component functions into a single chip.
  • Simplified designs: the devices' 1-Wire interface allows for a large number of devices on the same communication bus. Their four dedicated address pins uniquely identify up to 16 sensor locations.
  • Versatility: the MAX31850 is available for K, J, N, T, and E thermocouple types and the MAX31851 is available for R and S thermocouple types.

Industry Commentary

  • "The digitization of thermocouple signals poses a unique design challenge, especially when a large number of thermocouples are involved," said Amy Gebrian, Senior Business Manager of Thermal Management Products at Maxim Integrated. "The MAX31850/MAX31851 greatly ease design effort and minimize system wiring by integrating a complete thermocouple digitizer circuit and a single wire interface into one IC."
  • "Accurate temperature measurement is critical in industrial and medical equipment," said Susie Inouye, Research Director at Databeans. "Products that enable high accuracy temperature sensing will become increasingly important for these industries."

Availability and Pricing

  • Available in a 10-pin, exposed-pad TDFN package (3mm x 4mm x 0.75mm).
  • Specified over the -40°C to +125°C temperature range.
  • Pricing starts at $3.10 (1000-up, FOB USA).

Download a hi-res image of the MAX31850 thermocouple-to-digital converter.

1-Wire is a registered trademark of Maxim Integrated Products, Inc. All trademarks are the property of their respective owners.

About Maxim Integrated
At Maxim Integrated, we put analog together in a way that sets our customers apart. In Fiscal 2012, we reported revenues of $2.4 billion.

Follow Maxim Integrated on Twitter and on Facebook.

Contact:

Timery Crawford


(408) 601-5435


timery.crawford@maximintegrated.com

SOURCE Maxim Integrated Products, Inc.

Contact:
Maxim Integrated Products, Inc.
Web: http://www.maxim-ic.com




Review Article Be the first to review this article
Rand3D

Featured Video
Jobs
Mechanical Engineer I for Air Techniques, Inc at Melville, NY
Proposal Support Coordinator for Keystone Aerial Surveys at Philadelphia, PA
Upcoming Events
The Rise of Mechatronics at Dassault Systèmes San Diego 5005 Wateridge Vista Drive San Diego CA - Sep 12, 2017
The Rise of Mechatronics at Buca di Beppo - Pasadena 80 West Green Street Pasadena CA - Sep 13, 2017
The Rise of Mechatronics at Dassault Systèmes Santa Clara 3979 Freedom Circle, Ste 750 Santa Clara CA - Sep 14, 2017
The 30th Annual Integrated Process Excellence Symposium & Training at Wyndham Grand Bonnet Creek Resort Orlando FL - Sep 18 - 20, 2017
Kenesto: 30 day trial



Internet Business Systems © 2017 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy Advertise