I have a question regarding ferrite beads. I have this kind of circuit:
Where IC1 and IC2 are digital ICs. The voltage supply for the opamps is obviously analog. I want to place a ferrite bead between the analog and digital side. I heard that it is best to place a ferrite bead between two decoupling caps (B). But in a lot of datasheets they place the ferrite bead between analog and digital supply (A).
- Should I place the ferrite bead in point A or should I use multiple ferrite beads and place them in B?