Regulator proximity to opamp

[Frederico Acardi]

Hi I need to create a +-15V regulator for an opamp.
But I don't know what is the best for low noise, to have the regulator close to the opamp (lower impedance) or far away from the opamp to reduce noise ?
What is "industry standard".


What is the best :
BRIDGE > CRC > REGULATOR >>>>>>>>>>>>>>>>>>>>>>>>OPAMP
or
BRIDGE > CRC >>>>>>>>>>>>>>>>>>>>>>>> REGULATOR >OPAMP

Thank you.

 

[Simon1972]

Regulator as close to load as possible, same with decoupling caps for the opamp.

 

[Michael Bean]

Choice #2 is the best option. That option will minimize the amount of stray reactance at the power input terminals of the op amp, which will enhance stability in operation.

Mike

 

[Frederico Acardi]

Thank you very much.
Do you have an example of a low noise pcb ?

So I could know where to start.