Hi,
I've read the sticky on decoupling, but I still have a question. I have a small circuit with a CMOS 7555 and 4066 placed close to eachother. The frequency of the 555 in astable is between 0.5 - 3 Hz and it switches a single port of the 4066. The signal on the 4066 it switches is in the pA range. Do I still need decoupling with these low values? I've understood the 7555 doesn't require one on the Vcontrol pin so I took that out, but not sure if I need one between V+ and V-. Also, the 7555 and 4066 are really close together (<1 in). If I need decoupling after all, can I use one for both? And is 100nF enough?
I've read the sticky on decoupling, but I still have a question. I have a small circuit with a CMOS 7555 and 4066 placed close to eachother. The frequency of the 555 in astable is between 0.5 - 3 Hz and it switches a single port of the 4066. The signal on the 4066 it switches is in the pA range. Do I still need decoupling with these low values? I've understood the 7555 doesn't require one on the Vcontrol pin so I took that out, but not sure if I need one between V+ and V-. Also, the 7555 and 4066 are really close together (<1 in). If I need decoupling after all, can I use one for both? And is 100nF enough?