Locale Icon
English
EngineerZone
EngineerZone
Optical Sensing Library
  • Log In
  • User
  • Site
  • Search
OR
Ask a Question
  • Forums

    Popular Forums

    • LTspice
    • Video
    • Power Management
    • RF & Microwave
    • Precision ADCs
    • FPGA Reference Designs

    Product Forums

    • Amplifiers
    • Clocks & Timers
    • Data Converters
    • Direct Digital Synthesis (DDS)
    • Energy
    • Interface and Isolation
    • MEMS Inertial Sensors
    • Power Management
    • Processors & DSP
    • Processors & Microcontrollers
    • Switches & Multiplexers
    • Sensors
    • Voltage References
    View All

    Application Forums

    • A2B Audio Bus
    • Audio
    • Automated Test Equipment (ATE)
    • Condition-Based Monitoring
    • Depth, Perception & Ranging Technologies
    • Embedded Vision Sensing Library
    • Motor Control Hardware Platforms
    • Precision Technology Signal Chains Library
    • Video
    • Wireless Sensor Networks Reference Library

    Design Center Forums

    • ACE Evaluation Software
    • ADEF System Platforms
    • Design Tools & Calculators
    • FPGA Reference Designs
    • Linux Software Drivers
    • Microcontroller no-OS Drivers
    • Power Studio Designer
    • Power Studio Planner
    • Reference Designs
    • Robot Operating System (ROS) SDK
    • Signal Chain Power (SCP)
    • Software Interface Tools
    • System Demonstration Platform (SDP) Support
  • Learn

    Highlighted Webinar

    Power Management Fundamentals II Session 6: Key Layout Considerations for Power

    Understand the physics of printed circuit boards to manage large changes in current or voltage. See how layout tweaks can make big improvements for your...

    Places

    • ADI Academy
    • ADI Webinars
    • Video Annex
    • Virtual Classroom

    Libraries

    • 3D ToF Depth Sensing Library
    • Continuous-Wave CMOS Time of Flight (TOF) Library
    • Embedded Vision Sensing Library
    • Gigabit Multimedia Serial Link (GMSL) Library
    • Optical Sensing Library
    • Precision Technology Signal Chains Library
    • Software Modules and SDKs Library
    • Supervisory Circuits Library
    • Wireless Sensor Networks Library

    Latest Webinars

    • Enabling New Space Missions: ADI’s Commercial Space Screening Approach for Agile, High-Reliability Payloads
    • Understanding and Selecting RF Low Noise Amplifiers for Instrumentation, Phased Array and General Purpose Applications
    • Design Smarter with Compact, Low-Power Precision Current Source Signal Chains
    • Power Management Fundamentals II Session 6: Key Layout Considerations for Power
    • A 16T/16R X-Band Direct Sampling Phased Array Subsystem using Apollo MxFE
    View All Webinars
  • Community Hub

    Challenge Yourself!

      KCC's Quizzes AQQ296 about repairing an equation in a digital display

      1. Quote of this month: " When I die, I want to die like my grandfather who died peacefully in his sleep. Not screaming like all the passengers in his...

    View All

    What's Brewing

      Read a Blog, Take this Quiz for Another Chance to Win a Gift Card!

      Important: Read the blog first . The quiz questions are all based on the content from the blog: Mature, Not Old! The Longevity of 4 – 20 mA New...

    View All

    Places

    • Community Help
    • Analog Dialogue Quiz
    • Logic Lounge
    • Super User Program

    Resources

    • EZ Code of Conduct
    • EZ How To Help Articles
    • Getting Started Guide
    • ADI: Words Matter
    • Community Help Videos
    View All
  • Blogs

    Highlighted Blogs

    Taming the Chaos: Correlated and Uncorrelated Sources in LTspice .NOISE Simulations: Part 3 of 3

    Noise analysis of a circuit requires tracking several things simultaneously: each noise source, how those noise sources are shaped by the circuit, and...

     

    ​​Where Errors Lurk in the GMSL Signal Chain​

    Whether you're debugging a stubborn camera link or designing a robust system from scratch, knowing where errors hide is half the battle. GMSL provides...

    Latest Blogs

    • Achieving Power Over Data with RS-485 Transceivers
    • ​​Functional Safety: A Driver of “Shift Left”​
    • The 5 Advantages of Hardware Fault Tolerance
    • The Power Problem Inside Every AI Breakthrough: Part 1 of 3
    • Simplifying Stability with EVAL-KW4503Z: Part 1 of 3
    Read All Blogs

    ADI Blogs

    • EZ Spotlight
    • The Engineering Mind
  • ContentZone

    Visit ContentZone

    ContentZone

    Technical articles. Blogs. Videos. Your ADI content, all in one place.

    View ContentZone

    Featured Content

    Featured Content Title

    Blurb About Content

    View Content By Industry

    • Aerospace and Defense Systems
    • Automotive Solutions
    • Consumer Technology Solutions
    • Data Center Solutions
    • Energy Solutions
    • Healthcare Solutions
    • Industrial Automation Technology Solutions
    • Instrumentation and Measurement Solutions
    • Intelligent Building Solutions
    • Wireless Communication Solutions

    View Content By Technology

    • A2B Audio Bus
    • ADI OtoSense Predictive Maintenance Solutions
    • Dynamic Speaker Management
    • Gallium Nitride (GaN) Technology
    • Gigabit Multimedia Serial Link (GMSL)
    • Industrial Vision
    • Power Solutions
    • Precision Technology
    • RF
    • Sensor Interfaces
    • SmartMesh
Optical Sensing Library
Optical Sensing Library
Documents Should I align the optical center of the LEDs for the wrist based SPO2 monitoring wearable design?
  • File Uploads
  • Documents
  • Members
  • Tags
  • Cancel
  • +Documents
  • +ADN8831: FAQ
  • +ADN8834: FAQ
  • +ADN8835: FAQ
  • +ADPD1080: FAQ
  • +ADPD1081: FAQ
  • +ADPD144RI: FAQ
  • +ADPD188BI: FAQ
  • +ADPD2140: FAQ
  • MAX1968: FAQ
  • +MAX1968EUI: FAQ
  • +MAX1968EVKIT: FAQ
  • +MAX1978ETM+: FAQ
  • +MAX1978EVKIT+: FAQ
  • +MAX1979: FAQ
  • +MAX30005CTI+: FAQ
  • +MAX30101ACCEVKIT#: FAQ
  • MAX30101ACCEVKIT: FAQ
  • +MAX30101DBEVKIT#_T1: FAQ
  • MAX30101EFD+: FAQ
  • +MAX30101EFD+_T1: FAQ
  • +MAX30102ACCEVKIT#: FAQ
  • MAX30102ACCEVKIT: FAQ
  • MAX30102EFD+: FAQ
  • +MAX30102EFD+T: FAQ
  • +MAX30110ACCEVKIT#: FAQ
  • +MAX30112EWG+: FAQ
  • +MAX8521ETP+: FAQ
  • +MAX8521EWX+: FAQ
  • +MAX86140AENP+: FAQ
  • +MAX86140ENP+: FAQ
  • +MAX86140EVSYS#: FAQ
  • MAX86141AENP+: FAQ
  • -MAX86141AENP+T: FAQ
    • Are there any issues with the MAX86141 LED driver?
    • For MAX86141,Which PD and LED does maxim recommend?
    • For the HW design of MAX86141, can the Gsensor be connected to the main MCU instead of the sensor Hub MAX32664?
    • How can I use just one photodiode in the MAX86141?
    • How PI parameter works for HR and SpO2 algorithms?
    • Is there a known issue with LED current drift?
    • Maxim bio sensor algorithm takes very long time to report HR/SpO2 data.
    • Should I align the optical center of the LEDs for the wrist based SPO2 monitoring wearable design?
    • What does FDM/CDM fliter mean in MAX86141?
    • What is the requirement for algorithim to output stable SpO2 output?
    • What is the total input power requirement for the MAX86141?
    • What SPI mode does the MAX86141 use for communication?
    • Why can't the MAX86141 driver automatically adjust LED brightness after successfully porting the driver code?
    • Why we need to do calibration for SpO2 algorithm? Is it workable without calibration?
  • +MAX86141ENP+T: FAQ
  • +MAX86141ENP+_B1: FAQ
  • +MAX86150EFF+: FAQ
  • +MAX86150EVSYS#: FAQ
  • +MAX86170BENG+T: FAQ
  • MAX86171ENI+: FAQ
  • +MAX86171ENI+T: FAQ
  • +MAX86171EVSYS#: FAQ
  • +MAX86176ENX+T: FAQ
  • +MAX86176EVSYS#: FAQ
  • +MAX86916EFD+: FAQ
  • +MAXM86146CFU+: FAQ
  • +MAXM86146EVSYS#: FAQ
  • +MAXM86161EFD+: FAQ
  • +MAXM86161EVSYS#: FAQ

Should I align the optical center of the LEDs for the wrist based SPO2 monitoring wearable design?

It is advised to align the optical center of the LEDs as SPO2 monitoring requires the RED and IR light to have similar optical paths. 

 

 

Tags: alignment MAX86141AENP+ wearable led MAX86141 KA-10303 spo2 Show More
  • Share
  • History
  • Cancel
analog-devices logo

About Analog Devices

  • Who We Are
  • Careers
  • Newsroom
  • What We Do (Signals+)
  • Investor RelationsExternalLink
  • Quality & Reliability
  • Sales and Distribution
  • What's New on Analog.com
  • Contact Us

Find Help

  • Support
  • Resources
  • WikiExternalLink
  • Analog Dialogue
  • ADI Developer PortalExternalLink

myAnalog

Interested in the latest news and articles about ADI products, design tools, training, and events?

Go to myAnalog
  • Instagram page
  • Twitter page
  • Linkedin page
  • Youtube page
  • Facebook
  • Legal and Risk
  • Accessibility
  • Privacy Policy
  • Privacy Settings
  • Cookie Settings

©2026 Analog Devices, Inc. All Rights Reserved

analog-devices

About Analog Devices

Down Up
  • Who We Are
  • Careers
  • Newsroom
  • What We Do (Signals+)
  • Investor RelationsExternalLink
  • Quality & Reliability
  • Sales and Distribution
  • What's New on Analog.com
  • Contact Us

Find Help

Down Up
  • Support
  • Resources
  • WikiExternalLink
  • Analog Dialogue
  • ADI Developer PortalExternalLink

myAnalog

Interested in the latest news and articles about ADI products, design tools, training, and events?

Go to myAnalog
Instagram page Facebook Twitter page Linkedin page Youtube page
  • Legal and Risk
  • Accessibility
  • Privacy Policy
  • Privacy Settings
  • Cookie Settings

©2026 Analog Devices, Inc. All Rights Reserved