Other Parts Discussed in Thread: LOG114
I am running a photodiode where the minimum signal is around 1nA. When I sweep my signal slowly, the response is perfect, very accurate and low noise. When I speed things up, the rising edge looks OK but the falling edge is really slow. I know this is typical of log amps, but are there any passive components to change out to get better bandwidth at low currents? If I make my own PCB are there better ways to get more bandwidth or is the LOG114EVM kit already optimized and is the best I can get?