It appears that the SPICE model for the ADA4927 has a problem with the supply current on the negative supply pin. In the screen shot below, VEE is -5V, but the voltage at the V- pin of the amplifier is -5.034..., indicating that current is flowing from the amplifier to the power supply, instead of from the supply to the amplifier. I have attached the LTSPICE .asc file and the device files.