The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Design >> Analog Design >> Architectures for TIA design
https://designers-guide.org/forum/YaBB.pl?num=1155190310

Message started by t_stoll on Aug 9^th, 2006, 11:11pm

Title: Architectures for TIA design
Post by t_stoll on Aug 9^th, 2006, 11:11pm

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