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Original question:

OPT3101: OPT3101 photo diode input circuit description and spice model

OPT3101: OPT3101

Mark Barmettler
Prodigy 20 points
Part Number: OPT3101

Tool/software:

Gordon, Nicole, what is the INM and INP input pin impedance at 10 and 12MHz? 

  • 0
    TI__Prodigy 600 points

    Hi Mark, 

    I don't have a specific number; I will check with our team and keep you updated. The document "Introduction to Time-of-Flight Long Range Proximity and Distance Sensor System Design" did mention:

    "OPT3101 AFE input nets INP and INM are high impedance nets suitable to electromagnetic coupling."

    "Ferrite core beads with high impedance (500 Ohms or more) at 10MHz is important for effective performance. "

    It would be helpful if you could provide more details. 

    Thank you.

    Wenjuan