By going to second order filters we were able to shorten the transision band providing greater attenuation of the noise. We were also able to make a bandpass filter using second order design. Also note that compared to first order filters these circuits only require the addition of one capacitor.
Schematics and Graphs
Lowpass Filter:
Highpass Filter:
Bandpass Filter:
Once again some pictures for those of you you have not entered the lab recently:
What a mess!
A bandpass enters the game.
Close up of our second order filters.