AD8655 current noise

The selection guide lists the AD8655 with a current noise spec of 1 fA per rt Hz but this specification is not found on the parts datasheet.

The datasheet does not list a current noise spec for this part. Can you clear this up for me? I really want to know what the current noise spec is for this part. I designed it into an amplifier that is not performing as expected.

I really love the selection guide on your site. Its very easy to use. Its also easy to find your parts in stock at my supplier.