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THS4532 PSpice model question

Other Parts Discussed in Thread: THS4532


I'm using THS4532 in a AFE design. I would like run some simulations to verify my design. The PSpice model has a note which says "5V Supply only". In my application, I'm using 2.5V supply. The initial set of simulation seem to indicate that the model is works fine for 2.5V simulations. What are the specifications \ behavior that might not be modeled right at 2.5V. I see that the operating current is half of that at 5V.

I noticed that the current into 'PD_b' pin is around 19mA (even with 5V supply). I'm guessing this is just a modelling error.