Hi
First of all, thanks for your reply!
v_naren,
If I use the common gate amp to obtain the current to voltage conversion, maybe the time needed is too huge since the current signal frequency could be around 10MHZ~20MHZ. How do you think about it?
tucura,
If I use a reference current source, how could I design such a weak accurate reference current source considering the process,voltage and temperature variation?
Any comments or opinions? Or even some detailed circuit structures?
regards,
jordan76