Temperature Sensor for Wearable Devices Reference Design
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document


This TI Design is to demonstrate temperature sensoring aimed at the wearables market. The LMT70 temperature sensor is ideal for wearable devices due to its 0.13C temperature accuracy at human body temperatures. Its small form WCSP package allows it to be heated up quickly and thus have a fast thermal response time when placed  onto a human body.

  • USB form factor PCB board with breakout tabs to attach different substrates
  • TI Design report includes thermal response of different substrates and MSP430F5528 ADC calibration techniques
  • This TI Design system is tested and includes firmware, GUI, User Guides, and a Test Report

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files

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
LMT70  ±0.1°C ultra-small, high-precision, low-power CMOS analog temperature sensor  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5528  25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LMT70 Download -
MSP430F5528 Download Download
Download -
(ZQE) | 80 Download -

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guide (1)
Title Type Size (KB) Date
PDF 890 25 Feb 2015
Design files (4)
Title Type Size (KB) Date
PDF 628 25 Feb 2015
PDF 102 25 Feb 2015
PDF 180 25 Feb 2015
PDF 142 25 Feb 2015

Support & training

TI E2E™ forums with technical support from TI engineers

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles