The internal reference of my AD9244 is set to 2V (Sense pin at AGND). Does this mean my input span could be 2Vp-p centered around 0V? I have a differential output with a span of 1.8Vp-p centered around 0V common coming in to VIN+ and Vin-. However, the data sheet on page 18 specified that Vin- has to be above AGND. Does this mean I have to make sure my VIN common mode has to be at 1V rather than at 0V?
Any help would be greatly appreciated.