**Part Number:**OPA2191

I am using the OPA2191. The datasheet lists the maximum input bias at 125C as being 9nA.

The device is a CMOS type Op-Amp so I believe the input bias should double for every 10C rise.

Therefore I assume that the maximum input bias at 85C should be 9nA / 2^((125-85)/10) = 563pA.

Is this calculation correct, or is the worst case input bias significantly more or less than that at 85C?