Part Number: THS4521
I'm trying the THS4521 as a drop in replacement for a configuration without resistors. The amplifier is powered from 0 to 5 V, with the VOCM set to 1V and single ended input from 0.5-1.5V.
The circuit is a simply, the single ended input goes to the + ve input of the amplifier with the +ve output fed back into the -ve input. There is no feedback from the -ve output and no resistance in the feedback
from the +ve output. (There is 100ohm differential load).
This does work but is a bit noisy (~1mV, on each signal ) but most of this cancels differentially. Is this approach for single ended -> differential with G=2 fundamentally wrong and would I get far better noise performance using resistors in a feedback loops?
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