The AD9649 A/D has an analog supply voltage AVDD of 1.8 V. The analog inputs are spec'd at absolute max of -0.3 to AVDD + 0.2. Yet the recommended differential drivers for this A/D (ADA4937, etc) have minimum supply voltage of appx 5V and an output swing which exceeds the A/D input max. During power-on or input overload the A/D would easily see greater than its absolute max voltage on its VIN inputs. There is no protection against this shown in the A/D typical circuits. Is this something I need to worry about? If not, why not?