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IC chip for a series resonnance circuit.

B

beast

Jan 1, 1970
0
Is there an IC circuit I could use as a tank circuit? It is possible
to make resonnant circuit using resistors, and capacitors alone, so I
wonder if there is an IC chip I could wire somehow to make a tank
circuit...?
 
R

robert casey

Jan 1, 1970
0
beast said:
Is there an IC circuit I could use as a tank circuit? It is possible
to make resonnant circuit using resistors, and capacitors alone, so I
wonder if there is an IC chip I could wire somehow to make a tank
circuit...?

There is a way to use an op-amp and some caps and resistors to
fake an inductor, but the operating frequency is kinda low and
it's somewhat noisy for RF work. I don't know the particulars,
think it's called "gryator" or such. If you're doing RF
work, you'd be better off with real inductors. At high frequencies
they're smaller anyway.
 
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