Matched Precision Temperature Sensing Reference Design for Heat Cost Allocators

(ACTIVE) TIDA-00646

Description & Features

Technical Documents

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Key Document

Description

The TIDA-00646 reference design demonstrates techniques for precision temperature sensing as required by heat cost llocators and other Internet of Things (IoT) applications. Heat cost allocators use the temperature differential between Room and Heater body to assign a share of the total cost of a central heating system among multiple users. TIDA-00646 achieves better than 0.5 degrees Celsius accuracy across a range of +20 to +85°C. The LMT70A CMOS sensors used in the design are available as matched pairs to eliminate the need for calibration during manufacturing, lowering OEM system cost. The design is compliant to the EN834 standard using the “two-sensor measurement method”.

Features
  • Highly accurate temperature sensing across environment conditions: better than 0.5 degrees from +20 to +85degC
  • Matching of two adjacent LMT70A sensors on Tape and Reel saves test and manufacturing cost
  • CC1310 SimpleLink(TM) wireless MCU provides single-chip solution for heat measurement and RF communications
  • Low power operation down to 2.0V extends battery lifetime
  • Cost-optimized two-layer PCB layout in HCA form factor

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC1310  SimpleLink Sub-1 GHz Ultra-Low Power Wireless Microcontroller  SimpleLink Solutions  Sample & Buy View Design Kits & Evaluation Modules
LMT70A  ±0.1°C Matching Accuracy Precision Analog Temperature Sensor  Temperature Sensors  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Application notes (1)
Title Abstract Type Size (KB) Date Views
PDF 1196 22 Dec 2017 597
User guides (2)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 2968 18 Nov 2015 55
PDF 1731 21 Oct 2015 290
Design files (7)
Title Abstract Type Size (KB) Date Views
ZIP 587 08 Dec 2015 18
ZIP 986 08 Dec 2015 21
PDF 2218 08 Dec 2015 11
PDF 1150 08 Dec 2015 16
PDF 224 08 Dec 2015 16
PDF 98 08 Dec 2015 67
PDF 465 08 Dec 2015 67
Related Tools & Software

Reference Designs (2)

Software (1)



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