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# Questions tagged [band-pass]

Bandpass is an adjective that describes a type of filter or filtering process; it is to be distinguished from passband, which refers to the actual portion of affected spectrum. Hence, one might say "A dual bandpass filter has two passbands." A bandpass signal is a signal containing a band of frequencies not adjacent to zero frequency, such as a signal that comes out of a bandpass filter.

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### How to calculate the gain of a RLC tank filter?

I'm supposed to create a passive bandpass filter to select a reasonably sinusoidal 750 Hz signal from a 250 Hz square wave. Since we have very limited choices for the inductor (0.03 H) and capacitor ...
872 views

### How to find Vout for the following band pass filter

I have a problem finding the following Vout for this circuit. Is it possible to just use the following formulas that i have shown. I am just unsure due to the resistors. I assume that what i have ...
7k views

### Why is center frequency of a bandpass filter is given by the geometric average of the two cutoff frequencies?

In electronic communication systems, there is a concept called center frequency. A bandpass filter has upper cutoff and lower cutoff frequencies. Center frequency supposed to be in the middle of these....
277 views

### Op-Amp Input Bias Compensation for Multiple Feedback Filter

I'm adding an input bias current compensation network to the positive op-amp input of my band-pass multiple-feedback filter. I'm setting the source impedance for the positive input pin equal to that ...
96 views

### Digitally selectable filter

I have asked a similar question but I did not get an answer, as it was too specific. So I will build on it but make it a bit more broad spectrum. I would like to make a digitally selectable BPF using ...
I'm designing a bandpass filter and have been doing some reading on it. I found a transfer function describing the circuit (which apparently all formulas describing this circuit are derived from): ...