I'm looking for the spice Macro-model for AD8048 250MHz, General Purpose Voltage Feedback Op Amp. The link provided on the spice models site is actually for AD8047, which is only stable for G=+1.
Unfortunately we don't have a spice model for AD8048.
May I know what parameters are you considering in your simulation? I might find a part which is close to AD8048 that comes with a spice model. Also, if you have time to wait a little longer, I could create a model for AD8048 and send it to you.