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I should had also mentioned that the purpose of my project is to measure some 7-30Hz signals with amptitude 10-30 μV. The filters are to be used after an operation amplifier.
This is an hobby project (I am not a professional electronics designer). I guess I will start with something and see how...
I am trying to make an amplification and filtering circuit, but I am a bit confused on which capacitor type to use on the different parts.
I want to include three different types of filters:
a high pass filter with cutoff at 7Hz (link)
a low pass filter with cutoff at 31 Hz (link)...
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