Other Parts Discussed in Thread: TLV9064,
dear all,
i'm in a project that need to amplify photodiode output current signal. after signal transfer from current to voltage, i need to amplify this signal multiply 300 through 3 OPA stages.
I found for same schematic and same board but just replace OPA device from TLV2254 to TLV9064, the output signal will bring much noise. i compared input voltage noise density between TLV9064 and TLV2254, TLV9064 is better than TLV2254. But for input current noise density and Peak-to-peak equivalent input noise voltage from 0.1Hz to 10Hz, TLV2254 performance is better than TLV9064.
I know photodiode output signal with a very low BW, so i want to ask which spec mainly influence my photodiode amplify output noise Vpp performance?
thanks so much.