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PPG signal photodiode + 2-wire impedance configuration

Question asked by pado16core on Jul 31, 2015
Latest reply on Aug 12, 2015 by emoloney

Hi all,

 

I wanted to ask if anyone have had experience connecting a photodiode directly to the AFE for pulse oximetry while measuring bioimpedance.

 

Can I connect the photodiode directly to one of the AFE's inputs?

 

When I do that, would I be able to keep the 2-wire impedance functionality?

 

Thank you!

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