I'm using ADIsimPE to model a non-inverting AD829 amplifier, gain=21 (Rf=1 kOhm, Rg=50 Ohms).  I get an output noise much higher than expected for the AD829 noise specs.  Is the noise not modeled in the AD829 SPICE model?  Thanks

The AD829 circuit I built (again, non-inverting gain=21) has a measured noise approximately what's predicted from the AD829 noise specs, in disagreement with the ADsimPE simulation.