Ok, so I'm using a TCA0372 op-amp to split a single ended voltage into two rails. 8V and -1V. The -1V rail is to give some other op-amps (not yet designed) a bit of a negative rail so they can swing to 0V. The rail split part works fine until I add a standard linear regulator (7805) and use the output of the op-amp as a virtual ground (like floating the ground with a voltage divider) then it tries to blow up, pulling way too much current (tested with a CC supply so it should be fine). I'm planning to use the virtual ground as common for an Arduino circuit so if I use battery ground for the 7805, the rest of the circuit would be seeing 4v instead of 5v. Obviously I could just use an LM317 with battery ground and set it to 6V, but I wanted to know why this didn't work.
Thanks.
EDIT: Ignore the ground flag on the output of the op-amp, that goes nowhere.
Thanks.
EDIT: Ignore the ground flag on the output of the op-amp, that goes nowhere.
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