LOG104: Data sheet "Fig8 Precision Current Inverter/Current Source" offset error

Hi,

I would like to ask you a question about LOG104 application circuit, datasheet Page7 Fig8.

The circuit is designed with OPA2335.

My customer has been evaluating this circuit and get "16uA" output even though input current is "0A". (photodiode is off)

I suppose the output 16uA seems to be made from offset Bias current of OPA2335. Is my idea correct?

If yes, could you adivce me how to adjust it?

Or is this circuit designed output current range specification "from 10nA to 1mA"?

Thank you for you support.

Best Regards,