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Hello Youngjoon,
Thank you for sharing this update! I am glad you were able to find a working solution, that is really good to know about R5 (output resistor) affects on the comparator.
Best Regards, Sima
Hello Hardik,
You may want to include capacitors after the current source to help represent the photodiode at the LMH34400 inputs. You can refer to the 7.2.1 test circuit in the datasheet, as well as the LMH34400DRLEVM .
I would also recommend examining…
