Hello,
I see that Figure 5 on the datasheet shows 270mA @50MHz 3.3V operation. ((270e-3/8)/50e6)/3.3 = 204pF per channel. Why is the current in that figure this high? I see in section 7.9 the power dissipation capacitance per buffer as 33pF. So I'd expect 8*33pF*3.3V*50MHz = 43mA total supply current instead of 270mA.
Kind regards,
Zeki