I'm thinking of miniaturizing my current Opus DAC, currently stuffed in a 12" x 12" x 3" case. I have a Doodlebug coming, which is a USB power isolation device.
My idea is to have the clean 5V from the Doodlebug power the s25 and s26, which will then power the main components of the Opus DAC and the two alpha24s. My concern is with the alpha24, as it takes a dual power supply. I'm looking at the negative rail of the s26, and I see the issue with the swapping of 5V and G. Looking at the bridge however, since there's diodes inside, would there be any issue with the single 5V supply powering both the s25 and s26?
If so, my plan then is to wire up a rail splitter with the TLE2426 and a 220uF cap, which would be +/- 2.5V for the alpha24. The 5V components will be powered directly from the Doodlebug. The opamps at a quick glance are rated to at least +/- 2V.
Any potential issues with my plan?