With fully differential current feedback amplifiers like the ADA4927-1 are there any potential problems with adding an positive offset to the inverting input? The use case would be a unipolar input 0 to 1V on the non-inverting input and a 0.5V offset added to the inverting input. With a gain of 2 the full ADC range could be used (ADC with 2Vpp differential). If multiple FDAs are used in this configuration would it be better to use:
a) One LDO for all the FDAs offset
b) One LDO for each FDA offset
c) One LDO for all FDAs buffered using a unity gain buffer for each FDA?
If the unity gain buffer is the better solution would this device require any special attention ie. bandwidth