t_stoll
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Posts: 3
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Hi all -
I have to design a CMOS TIA which has to operate up to 400MHz with an AC coupled input (comming from an photo diode) and an input noise current density spec of <= 1pA/sqrt(Hz).
This noise spec seems quite taff!
Any idea what kind of architecture I could choose ?
I also have not seen any TIA differentially connected to the photo diode AC coupled. The only papers I find have a DC coupling connection (single ended)..
Best regards,
tOM
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