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ADL5391 input voltage range

The data sheet page 1 states: " The fully differential X, Y, and Z input interfaces are operational over a ±2 V range operation".  This a swing of 4 V p-p.

The detailed specs on page 3  show:  Differential Voltage Range, Differential, common mode = 2.5, 2 V p-p.

Which is correct?

I assume that 2 V p-p means +1V to -1V on the differential inputs,  +1V differential = 3.5V on V+ and -2.5V on V-  (with 2.5 V common mode)