Datasheet
AD8131
Rev. B | Page 11 of 20
–
50
–60
–70
–80
–90
–100
–110
DISTORTION (dBc)
700 800 900 1000
R
LOAD
(Ω)
400 500 600300200
V
S
= 5V
V
OUT, dm
= 2V p-p
HD3 (F = 20MHz)
HD2 (F = 20MHz)
HD2 (F = 5MHz)
HD3 (F = 5MHz)
01072-016
Figure 17. Harmonic Distortion vs. R
LOA D
–50
–60
–70
–80
–90
–100
–110
DISTORTION (dBc)
700 800 900 1000
R
LOAD
(Ω)
400 500 600300200
V
S
= 3V
V
OUT, dm
= 1V p-p
HD3 (F = 20MHz)
HD2 (F = 20MHz)
HD2 (F = 5MHz)
HD3 (F = 5MHz)
01072-017
Figure 18. Harmonic Distortion vs. R
LOA D
10
0
–10
–20
–30
–40
49.5 50.0 50.5
P
OUT
(dBm)
FREQUENCY (MHz)
–50
–60
–70
–80
–90
–100
–110
f
C
= 500MHz
V
S
= ±5V
R
L, dm
= 800Ω
01072-018
Figure 19. Intermodulation Distortion
45
40
35
30
25
20
15
INTERCEPT (dBm)
50 60 70 80
FREQUENCY (MHz)
20 30 40100
V
S
= +5V
V
S
= ±5V
R
L, dm
= 800Ω
01072-019
Figure 20. Third Order Intercept vs. Frequency
5ns
1V
V
OUT, dm
V
S
= ±5V
V
OUT+
V
OUT–
V
+DIN
01072-020
Figure 21. Large Signal Transient Response
5ns
40mV
V
S
= +5V
V
S
= ±5V
01072-021
Figure 22. Small Signal Transient Response