Hi, Richard.
You can use ADA4096-2 or ADA4096-4. These parts have typical input bias current of ±3nA, typical input offset voltage of 35uV, can be powered with 30V single supply or ±15V dual supply, and have rail-to-rail input and output.
You can also use ADA4084-2 or ADA4084-4 which are almost the same as ADA4096 but have higher -3dB bandwidth of 13.9MHz.
Let me know if you need anything else.
Regards,
Anna