Biomedical Engineering Reference
In-Depth Information
53.
Suppose the operational amplifier in the following circuit is ideal. (The circuit is a low-pass
first-order Butterworth filter.) Find the magnitude of the output
v
o
as a function of frequency.
−
R
+
+
+
V
S
C
−
v
0
−
54.
With an ideal operational amplifier, the following circuit is a second-order Butterworth
low-pass filter. Find the magnitude of the output
v
o
as a function of frequency.
C
1
R
1
R
2
V
S
C
2
v
0
55.
A third-order Butterworth low-pass filter is shown in the following circuit with an ideal
operational amplifier. Find the magnitude of the output
v
o
as a function of frequency.
C
2
R
2
R
3
R
1
V
S
C
1
C
3
v
0
