I read the Murata application notes on power supply decoupling and noise filtering. I guess it works great as advertisement because I now want to replace all the decoupling capacitors to my analog-related ICs with something like this :
CF1, CF2 : NFM21 three-terminal capacitors
As a relative beginner in electronics, I'm fine with wasting money on this kind of overkill circuit, if I can just drop it in and reap the advertised benefits (less Vin noise, equivalent voltage buffering compared to MLCC decoupling caps).
Are there hidden downsides ?
For the sake of argument, Vcc is 3.3v from a LDO regulator (which takes 5v from dirty USB power). The analog parts of the circuit are: a CCD (IC2 on the schematics, TCD1304DG), an op amp (TL971) and an ADC (AD7380). The CCD is clocked in at 2 MHz, and there are 12-20 MHz SPI lines running on the board. I can more or less add this without disturbing the routing of the actual signals.