Hey guys, I was reading that there are two ways to bypass the supply pins of an op amp. Just so we're on the same page, I'm using .1uF ceramic caps. The 2 ways:
1. -Use 2 caps per op amp, one goes from the positive supply pin to ground and the other from negative supply pin to ground.
2. -Use 1 cap per op amp, one end goes to the positive pin, the other end to the negative pin. Not involving the ground.
The application is for audio EQ (powered with +/-15V from linear regulators) so the lower the noise the better. I read that using method #1 is more of a risk because if there is any noise on your power supply, it will inject that noise into your ground. I have been using method #2 but I don't know which is better.
Has anyone out there ever tested which of the two methods is better? All opinions welcomed.