AD8131
–50
–60
–70
–80
45
40
35
30
V
V
= 5V
S
R
= 800Ω
L, dm
= 2V p-p
OUT, dm
HD2 (F = 20MHz)
HD3 (F = 20MHz)
V
= ±5V
S
–90
25
20
15
HD2 (F = 5MHz)
V
= +5V
S
–100
–110
HD3 (F = 5MHz)
200
300
400
500
600
700
800
900
1000
0
10
20
30
40
50
60
70
80
R
(Ω)
FREQUENCY (MHz)
LOAD
Figure 20. Third Order Intercept vs. Frequency
Figure 17. Harmonic Distortion vs. RLOAD
–50
–60
–70
–80
V
V
= 3V
S
= 1V p-p
V
= ±5V
OUT, dm
S
HD3 (F = 20MHz)
HD2 (F = 20MHz)
V
OUT, dm
V
OUT+
V
OUT–
–90
HD2 (F = 5MHz)
V
HD3 (F = 5MHz)
+DIN
–100
–110
5ns
1V
200
300
400
500
600
700
800
900
1000
R
(Ω)
LOAD
Figure 18. Harmonic Distortion vs. RLOAD
Figure 21. Large Signal Transient Response
10
0
fC = 500MHz
= ±5V
V
S
–10
–20
–30
–40
–50
–60
–70
–80
–90
R
= 800Ω
L, dm
V
= +5V
S
V
= ±5V
S
–100
–110
49.5
50.0
50.5
5ns
40mV
FREQUENCY (MHz)
Figure 19. Intermodulation Distortion
Figure 22. Small Signal Transient Response
Rev. B | Page 11 of 20
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