We've implemented the AD8130 circuit similar to the circuit shown in Figure 143 of the Datasheet - A cable tap video amplifier with a gain of 1.
We have found that the device is damaged easily when either:
video sources are connected up or powered up in the wrong order,
or a video source that is on a different power supply.
Figures 145 and 146 of the datasheet show series resistor in the inputs, please can recommend suitable values to provide adequate protection during installation?