I am working with the AD8655. For now I just want to observe its gain characteristics, but am having some trouble. I made a very simple non-inverting circuit and powered the op amp with +/-5V. However, the output does not match the frequency of the input signal and drops to ~ -5V regardless of whether or not an input is applied. Any ideas what my problem is? Could it be with my power supply?
Attached is the pinout I am following, and I did not connect the NC pins to anything.