[sdiy] Unity Gain Diff-in Diff-out driver

[Neil Johnson]

Hi Ben,

> I’ve been playing with differential driver circuits as part of a larger synth circuit I’m working on to seek a simple solution, what I’ve come up with just seems wrong but the sim has it working exactly as I need.

> https://drive.google.com/file/d/19rlz3_bgVclgZm5fZo7isq43QrmVGfst/view?usp=sharing

I'm still not understanding what exactly you are looking for?  That
circuit is a poor simulation setup so I am not at all surprised you're
getting some perfect answers.

If you just want to buffer a differential signal then just use two
opamps.  If you want to remove any common mode signal you need a
proper diff.amp and a test bench that will show you what the simulated
CMRR is (yours won't).

If you can specify what you want then you might get some more useful advice.

Cheers
Neil