Question
What is the current noise contribution in my TIA design?
Answer
Current noise contribution in the ADA4350 is negligible most of the time,
unless it is used in a high temperature and high feedback resistor combination
(e.g. Rf > 100 kÙ at 85C). If this becomes an issue, one can use the
formula
where fs is the signal frequency, to estimate the current noise
contribution.