QWhy would I use a 100Mbps device instead of the 200Mbps device?
AIn transmission line theory, it is best practice to use a part with a rise and
fall time as close to the data rate required to minimize reflections. ADI
provides two datarates to facilitate this: 100Mbps for datarates up to 100Mbps
and 200Mbps for applications that need datarates between 100Mbps and 200Mbps.