Enable Disable pin for AD8476

hi,
I'm looking for a single ended to differential amplifier and found the AD8476
which suits my needs. the only problem though seems to be that i need to
tristate/disable the amplifier when not in use ( without turning off the power
supplies). this part cannot do that but can you suggest a way i can do this? Or
an equivalent part which can be capable of doing this? Your response is most
appreciated!