I'm trying to achieve a nice 0 to 10V output from a 10V to 0V input, which would essentially be an inverting unity-gain amplifier, but after playing with a few conventional op-amps I'm finding I can't achieve this with a single DC supply. It seems to me that there ought to be a straightforward way to achieve this, but so far no go. Any ideas out there?

 

Ok, so now I'm answering my own post. I solved the problem myself with an LM662 op-amp and faked a split supply by using two 1K resistors as a voltage divider to 5V, then used it as a reference for the non-inverting input. So now the inverting input is fixed at unity gain with 2 more 1K resistors. Now 2V in = 8V out, 4V in = 6V out etc... This seems to work within 0.3V of the power rails. Probably as good as it gets.

(I suspect that my biggest problem is a lack of sleep)

 

What you used was LM662 or LMC662?

 

Yeah, it was the LMC662CN