Dear Doug,
I'm planning to use the ADA4940 as driver for the AD9253, because we need the lowest power usage.
The ADA4940 has a 5V power supply and the AD9253 has a 1.8V power supply.
You mentioned above that one of the compromises is that the ADA4940 has Rail-to-Rail outputs and that
I have to use overvoltage protection between the ADA4940 and the AD953.
I searched on the forum, but I can not find any schematics for the overvoltage protection.
Is this a simple protection with schottky diodes, or can I be done in another way.
Can you please supply a schematic example with suitable part numbers.
Thanks,
Andre