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AFE4400: Suggestion for Photodiode, RED LED and IR LED

Harsh Shirke
Prodigy 130 points
Part Number: AFE4400

Tool/software:

Hello TI team,

I am working on an SpO₂ application using the AFE4400, which typically requires a photodiode, red LED and an IR LED. Could you please suggest suitable red and IR LEDs that are compatible with the AFE4400 for accurate and reliable performance?

Best Regards,

Harsh

  • 0
    TI__Intellectual 890 points

    Hello Harsh,

    We don't have any specific recommendation for your application; the AFE4400 is compatible with a wide array of LEDs, and it will depend on your required LED current, brightness, and wavelength as determined by your algorithm and selected photodiodes.

    Other AFE PPG chips from TI are tested using the SFH7072 Biomonitoring sensor, which you can use as a starting point.

    Regards,

    Payton