Would the precision rectifier method work with negative voltages? Thinking about it for simplicity, I -can- have the output as 0 - +10V and forget about the negative portion.
To answer some above questions, the diode drop wouldn't be an issue... I'm concerned with the final output voltage, so I can calibrate the two voltage sources to overcome the diode drop no worries. As for current draw, this will be for an output so I will be buffering it anyways. Hope that helps!
Mike