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3 – 8
10
Q = 1
0
2
-10
5
10
-20
20
-30
50
100
-40
-50
-60
-2
-1
10
10
Figure 3.3: The SR124 low pass input filter gain
10
0
-10
-20
-30
-40
-50
-60
-0.3
-0.2
10
10
10
Figure 3.4: The SR124 notch input filter gain
Low Pass
0
10
Normalized frequency (f / f
)
0
Notch Filter
100
10
5
2
Q = 1
-0.1
0
0.1
10
10
Normalized frequency (f/f
)
0
SR124 Analog Lock-In Amplifier
Performance Details
1
2
10
10
0.2
0.3
10
10
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