MAX86173
Info : RECOMMENDED FOR NEW DESIGNS
searchIcon
cartIcon

MAX86173

Dual-Channel Optical AFE with High Signal-to-Noise Ratio for Wearable Health

Show More showmore-icon

Best-in-class SNR for Addressing Low Perfusion and New Use Cases

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $3.25
Features
  • Complete Dual-Channel Optical Data-Acquisition System
  • Ultra Low-Power Operation for Wearable Devices
    • Low-Power Operation, Optical Readout Channel < 11µA at 25fps
    • Exposure Integration Period Ranging from 14.6μs to 118.2µs
    • Low Shutdown Current < 1µA
  • Excellent Top-End Dynamic Range > 97dB in White Card Loop-Back Test (Nyquist Sample-to-Sample Variance)
  • Extended Dynamic Range up to 115dB (Averaging and Off-Chip Filtering)
  • Supports Frame Rates from 1fps to 2.9kfps
  • High Resolution 20-Bit Charge Integrating ADCs
  • Supports Four PD Inputs for Multi-Parameter Measurements
  • Supports Nine LED Driver Output Pins Generated from Three 8-Bit LED Current Drivers
  • Low Dark Current Noise of < 50pARMS (Sample-to-Sample Variance in 118.2µs Integration Time)
  • Excellent Ambient Range and Rejection Capability
    • 200µA Ambient Photodiode Current
    • > 70dB Ambient Rejection at 120Hz (Burst Average > 2)
  • Miniature 2.78mm x 1.71mm, 7 x 4, 0.35mm Ball Pitch WLP Package
  • -40°C to +85°C Operating Temperature Range
Additional Details
show more Icon

The MAX86173 is an ultra-low-power optical data acquisition system with both transmit and receive channels. On the transmitter side, the MAX86173 has nine LED driver output pins, programmable from three high-current, 8-bit LED drivers. On the receiver side, the MAX86173 has two low-noise charge integrating front-ends that each includes independent 20-bit ADC and best-in-class ambient light cancellation (ALC) circuits, producing the highest performing integrated optical data acquisition system in the market today.

Due to its low power consumption, compact size, ease and flexibility of use, the MAX86173 is ideal for a wide variety of optical sensing applications such as pulse-oximetry and heart-rate detection.

The MAX86173 operates on a 1.8V main supply voltage and a 3.1V to 5.5V LED driver supply voltage. The device supports both I2C and SPI interfaces in a fully autonomous way. The device has a large 256-word built-in FIFO.

The MAX86173 is available in a compact WLP package 2.78mm x 1.71mm with 7 x 4, 0.35mm ball pitch.

Applications

  • Wearable Devices for Fitness, Wellness and Medical Applications
  • Clinical Accuracy
  • Suitable for Wrist, Finger, Ear and Other Locations
  • Optimized Performance to Detect:
  • Optical Heart Rate
  • Heart-Rate Variability
  • Oxygen Saturation (SpO2)
  • Body Hydration
  • Muscle and Tissue Oxygen Saturation (SmO2 and StO2)
  • Maximum Oxygen Consumption (VO2 max)
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.
Part Models 2
1ku List Price Starting From $3.25

close icon
Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX86173ENI+
  • HTML
  • HTML
MAX86173ENI+T
  • HTML
  • HTML
Evaluation Kit

Evaluation Kits 1

reference details image

MAX86173EVSYS

Evaluation System for the MAX86173

zoom

MAX86173EVSYS

Evaluation System for the MAX86173

Evaluation System for the MAX86173

Features and Benefits

  • Quick Evaluation of the MAX86173
  • Supports Optimization of Configurations
  • Facilitates Understanding MAX86173 Architecture and Solution Strategy
  • Real-time Monitoring
  • Data Logging Capabilities
  • On-Board Accelerometer
  • Bluetooth® LE
  • Windows® 10-Compatible GUI Software

Product Detail

The MAX86173 evaluation system (EV Sys) allows for the quick evaluation of the MAX86173 optical AFE for applications at various sites on the body, particularly the wrist. MAX86173 supports both I2C and SPI compatible interfaces. MAX86173 has two optical readout channels that operate simultaneously. The EV Sys allows flexible configurations to optimize measurement signal quality at minimal power consumption. The EV Sys supports file logging and flash logging, allowing the user to disconnect from the computer for more convenient data capturing sessions, such as overnight or outdoor running.

The EV Sys consists of two boards. MAXSENSORBLE_ EVKIT_B is the main data acquisition board while MAX86173_OSB_EVKIT_B is the sensor daughter board for MAX86173. To enable PPG measurement capabilities, the sensor board contains eight LEDs (OSRAM CT DBLP31.12, green LED, and OSRAM SFH7013, red, green, and IR 3-in-1 LED package) and four discrete photodiodes (Vishay VEMD8080), and an accelerometer. The EV Sys is powered through a LiPo Battery attached inside it and can be charged using a Type-C port. The EV Sys communicates with the MAX86173GUI (should be installed in the user’s system) using Bluetooth® built into Windows (Win BLE). The EV Sys contains the latest firmware but comes with the programming circuit board MAXDAP-TYPE-C in case a firmware upgrade is needed.

Applications

  • Wearable Devices for Fitness, Wellness and Medical Applications
  • Clinical Accuracy
  • Suitable for Wrist, Finger, Ear and Other Locations
  • Optimized Performance to Detect:
  • Optical Heart Rate
  • Heart-Rate Variability
  • Oxygen Saturation (SpO2)
  • Body Hydration
  • Muscle and Tissue Oxygen Saturation (SmO2 and StO2)
  • Maximum Oxygen Consumption (VO2 max)

Recently Viewed