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TIDA-060034

Hearables body temperature monitor flex PCB strip reference design

Design files

TIDA-060034

Design files

Overview

This reference design demonstrates how to use the TMP117 to measure accurate body temperature through the ear from a hearable design. This design implements two TMP117 parts on a small flexible that is suitable for hearable devices. Two temperature sensors are integrated onto the design to compensate for system or ambient temperature changes that can affect the accuracy of body temperature measurements.

Features
  • TMP117: ±0.1°C max, 3.5 μA ultra-low power temperature sensor
  • Integrated speaker soldering pads & audio input connection
  • Thin-Film flexible material
  • Breakout for connection to external microcontroller
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Design files & products

Design files

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

download Design guide — TIDA-060034
PDF | HTML
TIDUEX1A.PDF (3239 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-060034
TIDM745.PDF (93 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-060034
TIDM744.PDF (89 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download CAD/CAE symbol — TIDA-060034
TIDM747.ZIP (244 KB)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-060034
TIDCFY3.ZIP (2418 KB)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-060034
TIDM746.PDF (244 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-060034
TIDM743.PDF (109 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Digital temperature sensors

TMP117 — 0.1°C digital temperature sensor, 48-bit EEPROM, PT100/PT1000 RTD replacement

Data sheet: PDF | HTML

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Hardware development

Evaluation board

TMP117EVM — TMP117 digital temperature sensor evaluation module

This reference design demonstrates how to use the TMP117 to measure accurate body temperature through the ear from a hearable design. This design implements two TMP117 parts on a small flexible that is suitable for hearable devices. Two temperature sensors are integrated onto the design to (...)

EVM user’s guide: PDF
Supported products & hardware

Supported products & hardware

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Reference design
TIDA-060034 — Hearables body temperature monitor flex PCB strip reference design
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TMP117EVM — TMP117 digital temperature sensor evaluation module

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TIDA-060034 — Hearables body temperature monitor flex PCB strip reference design
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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* Design guide Hearables Body Temperature Monitor Flex PCB Strip Reference Design (Rev. A) PDF | HTML Mar 8, 2021

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