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Can the OPA857 be used with an AC-coupled signal? i.e. can I connect a cap between the photodiode and the TIA input to reject DC? Will this affect stability?
Is there an application reason behind AC-coupling the photodiode into the OPA857? Due to stability and parasitics, the OPA857 input is intended to be directly connected to the photodiode. Once you share more behind your circuit needs and reasoning, myself or my team can provide more insight into your exact use-case.
Please share any circuit details, component values, etc as well as your application needs for AC-coupling the photodiode to the OPA857.
