I'm having some difficulty with the OPA4314 used in a 3-channel Baxandall equaliser as shown in the attached TINA-TI file (OPA4314 Baxandall.tsc).
The problem is oscillation at around 123kHz in either no-load conditions or loaded as per attached file when the Mid potentiometer is at approximately 50% or higher. I am unable to re-create this instability in TINA-TI.
Can you provide any advice on how to solve this? E.g in-loop feedback but how do I calculate the required C and R?