MAX32664

PRODUCTION

Ultra-Low Power Biometric Sensor Hub

Low Power Sensor Hub Family which Seamlessly Communicates with Several Maxim Bio-metric Sensors

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Overview

  • Biometric Sensor Hub Enables Faster Time to Market
  • Finger-Based (Version A) Algorithms Measure
    • Pulse Heart Rate
    • Pulse Blood Oxygen Saturation (SpO2)
  • Wrist-Based (Version B) Algorithm Measures:
    • Pulse Heart Rate
  • Wrist-Based or Ear-Based (Version C) Algorithms Measure:
    • Pulse Heart Rate
    • Pulse Blood Oxygen Saturation (SpO2)
  • Finger-Based (Version D) Algorithms Measure:
    • Pulse Heart Rate
    • Pulse Blood Oxygen Saturation (SpO2)
    • Estimated Blood Pressure
  • Both Raw and Processed Data Are Available
  • Basic Peripheral Mix Optimizes Size and Performance
    • One Slave I2C for Communication with a Host Microcontroller
    • One Master I2C for Communication with Sensors Sensors (Versions A, C, and D)
    • One Master SPI for Communication with Sensors Sensors (Versions B and C)
    • 32.768kHz RTC
    • FIFO Provides Minimal Host Interaction
    • Bootloader Facilitates Secure, Authenticated Firmware Upgrades

The MAX32664 is a sensor hub family with embedded firmware and world-class algorithms for wearables. It seamlessly enables customer-desired sensor functionality, including communication with Analog Devices' optical sensor solutions and delivering raw or calculated data to the outside world. This is achieved while keeping overall system power consumption in check. The device family interfaces to a microcontroller host through a fast-mode slave I2C interface for access to raw and processed sensor data as well as field updates. A firmware bootloader is also provided.

The MAX32664 Version A supports the MAX30101/MAX30102 high-sensitivity pulse oximeter and heart-rate sensor for wearable health for finger-based applications. A master mode I2C interface for communication with sensors is provided.

The MAX32664 Version B supports the MAX86140/MAX86141 for wrist-based applications. A master mode SPI interface for communication with sensors is provided.

The MAX32664 Version C supports the MAX86140/MAX86141 for wrist-based applications and MAXM86161 for ear-based applications. The device provides either a master mode SPI or an I2C interface for communication with sensors.

The MAX32664Version D supports the MAX30101/MAX30102 high-sensitivity pulse oximeter and heart-rate sensor for wearable health for finger-based applications. A master mode I2C interface for communication with sensors is provided. Version D also supports estimated blood pressure monitoring.

The wearable algorithms in the MAX32664 sensor hub support a directly connected accelerometer. They also allow feeding of X, Y, and Z samples from a host-connected accelerometer. This architecture provides robust detection and compensation of motion artifacts in captured samples.

The tiny form factor 1.6mm x 1.6mm WLP or 3mm x 3mm TQFN allows for integration into extremely small application devices.

Applications

  • Wearable Fitness
  • Hearables
  • Wearable Medical
  • Portable Medical
  • Mobile Devices

MAX32664
Ultra-Low Power Biometric Sensor Hub
MAX32664: Simplified Block Diagram
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Tools & Simulations


Reference Designs

MAXREFDES101
MAXREFDES101 Circuits from the lab

Health Sensor Platform 2.0

Features and Benefits

  • Photoplethysmography (PPG)
  • Biopotential measurement (ECG)
  • Skin temperature
  • Embedded heart-rate algorithm
  • Motion and rotation
  • Wearable watch form factor
maxrefdes 105 photo 1
MAXREFDES105 Circuits from the lab

Wrist-Based SpO2, Heart Rate (HR), and Heart Rate Variability (HRV) Health Sensor Platform

Features and Benefits

Features

  • PPG
  • Wrist-based embedded heart rate, blood oxygen saturation (SpO2) algorithm
  • HRV, respiration rate, sleep quality library algorithm
  • Wearable health band form factor
  • MAX32664 sensor hub
  • MAX86174A PPG analog front-end
  • 3-axis accelerometer
  • Windows® and Android GUIs

Applications

  • Remote Patient Monitoring/Vital Sign Patch
maxrefdes220 board
MAXREFDES220 Circuits from the lab

Finger Heart Rate and Pulse Oximeter Smart Sensor with Digital Signal Processing

Features and Benefits

MAX30101 Heart Rate Monitor and Pulse Oximeter

  • Tiny, 5.6mm × 3.3mm × 1.55mm 14-Pin Optical Module
  • Integrated Cover Glass for Optimal, Robust Performance
  • Ultra-Low Power Operation for Mobile Devices (<1mW)
  • Programmable Sample Rate and LED Current for Power Savings
  • High SNR (Signal-to-Noise) Ratio, >80dB (typ)

MAX32664 Sensor Hub

  • Maxim-Licensed Firmware for Complete Algorithmic Support of: 1) Finger Heart-Rate and Blood Oxygen Saturation Calculations or 2) BPT, Heart-Rate, and Blood Oxygen Saturation Calculations
  • Industry-Standard I2C Interface for Communication with Host Controller
  • Dedicated Bootloader Authenticates Secure Firmware Updates

3-Axis Accelerometer

  • Provides Greater Accuracy
  • Compensates for Motion Artifacts
MAXREFDES103# system diagram
MAXREFDES103 Circuits from the lab

Wrist-Based SpO2, HR, and HRV Health Sensor Platform

Features and Benefits

  • Photoplethysmography (PPG)
  • Wrist-based embedded heart rate, blood oxygen saturation (SpO2) algorithm
  • Heart rate variability (HRV), respiration rate, sleep quality library algorithm
  • Wearable health band form factor
  • MAX32664 sensor hub
  • MAX86141 PPG analog front-end
  • 3-axis accelerometer
  • Windows® and Android GUIs

Part Used


Design & Integration Tools


Videos

  • lazy blur
    VIDEO · 2022-10-04 01:45
    How to Get Your Healthcare Wearable Off the Ground Faster
MAXREFDES101
Health Sensor Platform 2.0
MAXREFDES101
MAXREFDES101
MAXREFDES101
MAXREFDES101
MAXREFDES101
MAXREFDES105
Wrist-Based SpO2, Heart Rate (HR), and Heart Rate Variability (HRV) Health Sensor Platform
maxrefdes 105 photo 1
maxrefdes105 system diagram
maxrefdes105 image
MAXREFDES220
Finger Heart Rate and Pulse Oximeter Smart Sensor with Digital Signal Processing
maxrefdes220 board
maxrefdes220 figure 1
maxrefdes220 figure 2
MAXREFDES103
Wrist-Based SpO2, HR, and HRV Health Sensor Platform
MAXREFDES103# system diagram
MAXREFDES103
MAXREFDES103

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