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AS7024 Vital Signs Module

Smart Health & Fitness Solution

Features

  • Single module integrated solution - 5 Photo Diodes (4 for PPG, 1 for Prox), 3 LEDs (2 green, 1 IR), Analog Front End
  • Dimension 2.7mm x 6.1mm
  • Low noise Optical Front End (Synchronous demodulators, Programmable sequencer & HP filter)
  • Low noise analog electrical front for ECG and additional measurements
  • Algorithms for HRM, motion compensation, blood pressure

Benefits

  • Allows small size application e.g. wearable and mobile
  • Reliable PPG and HRM measurement
  • Works reliably with ambient light
  • Off load processor ensuring long operating time
  • Additional information e.g. ECG, Blood Pressure, Temperature
  • 1-stop shop combining Hardware and Algorithm allows quick time to market

Product parameters

Supply Voltage [V] 2.7 to 5.5
I²C Bus I²C Slave, Standard (100kHz) and Fast Mode (400kHz)
Temperature Range [°C] -30 to 70
Packages 20 pins, 6.1mm x 2.7mm x 1mm
LED Configuration 2 Green, 1 IR
Supported Algorithms Blood Pressure, HRM, HRV

General Description

The operation of the AS7024 is based on photoplethysmography (PPG) and electrocardiogram (ECG). PPG is the most used HRM method which measures the pulse rate by sampling light modulated by the blood vessels, which expand and contract as blood pulses through them. ECG is the reference for any measurement of the bio potential generated by the heart. The AS7024 is supported by algorithms converting the PPG and ECG readings into digital HRM, HRV and Blood Pressure values. The module includes the LEDs, photo-sensor, analog front-end (AFE) and sequencer as well as application software. In addition to HRM/HRV and Blood Pressure, the module also enables skin temperature and skin resistivity measurements by providing interfaces to external sensors. The AS7024’s low-power design and small from factor is particularly well suited to application in fitness bands, smart watches, sports watches and smart patches, in which board space is limited and in which users look for extended, multi-day intervals between battery recharges.

This product suits for the following applications:

  • Wearables
  • Smart health
  • Smart patches
  • Smartphones
  • Automotive
  • Health & Wellness

Technical Documents

Name Type Description Version Language
AS7024_FS000207_2-00.pdf Factsheet Vital Signs Module 2-00 English

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