Wearable, Wireless, Multi-Parameter Patient Monitor Reference Design

(ACTIVE) TIDA-01580

Description & Features

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Key Document

Description

This reference design is a simple, wearable, multi-parameter, patient monitor that uses a single-chip, biosensing front end, the AFE4900 device, for synchronized electrocardiography (ECG) and photoplethysmography (PPG) measurements. The measured data is transferred to a remote location using the CC2640R2F device (supporting BLE 4.2 and 5). The reference design is operated using a single CR3032 battery and provides a battery life of 30 days. The raw data is available for the user to calculate heart-rate, oxygen concentration in blood (SpO2), pulse-transit time (PTT), and ECG. Two onboard light-emitting diodes (LEDs) indicate low-battery detection and ECG lead-off detection for users.

Features
  • Simple, wearable, multi-parameter, patient monitor for PPG and ECG
  • Provides raw data to calculate heart rate, SpO2, and PTT
  • Uses single-chip, biosensing front-end AFE4900 device for synchronized ECG and PPG measurements
    • PPG (Optical heart-rate monitoring and SpO2) supports four LEDs and three photodiodes (PDs), with digital ambient subtraction to improve signal-to-noise ratio (SNR)
    • ECG (LEAD I) signals
  • Integrated Arm® Cortex®-M3 and 2.4-GHz RF transceiver (CC2640R2F) supports wireless data transfer - BLE 4.2 and 5.0
  • Operated by CR3032 (3-V, 500-mA coin-cell battery), with battery life of 30 days using highly efficient DC/DC converters
  • Small form factor helps with easy adaptation to wearable applications

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AFE4900  Ultra-Low-Power Integrated AFE for Wearable Optical, Electrical Biosensing  Medical AFEs  Not Available View Design Kits & Evaluation Modules
CC2640R2F  SimpleLink Bluetooth® low energy Wireless MCU  SimpleLink Solutions  Sample & Buy View Design Kits & Evaluation Modules
TPD1E10B06  Single-Channel ESD in 0402 Package With 10pF Capacitance and 6V Breakdown  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS61099  0.7Vin Synchronous Boost Converter with 800 nA Ultra-Low Quiescent Current  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS63036  High Efficient Single Inductor Buck-Boost Converter with 1-A Switches  Buck-boost & inverting  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC2640R2F Download Download
Download Download
Download -
Download Download
TPD1E10B06 Download Download
TPS61099 Download Download
Download -

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Technical Documents

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

Application notes (3)
Title Abstract Type Size (KB) Date Views
PDF 4977 10 Jan 2017 0
PDF 692 02 Mar 2015 0
PDF 313 14 Jan 2015 0
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 7415 12 Oct 2017 0
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 859 20 Apr 2018 0
ZIP 6851 20 Apr 2018 0
ZIP 1072 20 Apr 2018 0
ZIP 263 20 Apr 2018 0
ZIP 117 20 Apr 2018 0
ZIP 692 20 Apr 2018 0
Related Tools & Software

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
SimpleLink™ Bluetooth® low energy CC2640R2F wireless MCU LaunchPad™ development kit  LAUNCHXL-CC2640R2  Development Kits 

Software (2)



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