Op-amp Virtual Ground Supply Splitter

You can use two 10k resistors in series like you did and add a 100uF capacitor between ground and Vref to low power applications (sending link of the example)

https://everycircuit.com/circuit/5068847231795200

@ALL. Access to posted links could be made far easier by editing out the 's' in the protocol prefix prior to posting the link. Thank you in advance for your cooperation.

@GLaDOS what you have suggested - an unbuffered voltage divider - is not really a good option of such purposes. No matter how much capacitance you whack in, be it 100uF or 1000uF, a resistor divider cannot be used as a rail Splitter. It is better to stick to the op amp version.

@GLaDOS Of course, if the current draw is sufficiently low and the resistors are of sufficiently low resistance, then a simple voltage divider would work. But, that is very inefficient and unstable. If you use a 10V supply and 10K resistors, then placing a 1mA load between the virtual ground rail and the 0V rail will effectively short it. A 100uA load will pull your virtual ground down to 4.5V. Basically, any sort of load will shift your virtual ground significantly. Whereas with the op-amp based version, the virtual ground is being actively maintained, so it will remain stable so long as the load does not exceed the rating of the op-amp.