I'm trying to simulate a simple unity gain inverting amplifier using the AD8666 with +/-5V power supply. Feeding a 1 V amplitude sine wave centered at 0V generates an output waveform that seems to have problems on the negative side. Increasing the power supply to +/-6V fixes the issue in simulation. This doesn't make sense to me as this op amp input voltage range should be pretty close to -5V to +5V (when driven with +5/-5) according to the datasheet. Is this a bug in the AD8666 Spice model?
