I am in the process to design some input band pass filters for a High-speed ADC(Switched-Capacitor).
In the past I use air coils inductors and NPO capacitors to minimize the THD contribution
of the filter.
A lot of evaluation circuits use inductors with a core. Furthermore air coils are big
in size and are relative small in value.
Can somebody give me some information what kind of inductors I can that will give good
in advance for any reaction