Datasheet

AD8138
Rev. F | Page 11 of 24
DISTORTION (dBc)
–90
–100
–110
–70
–80
–
60
V
S
=5V
V
OUT, dm
=2Vp-p
HD2 (F = 20MHz)
HD3 (F = 20MHz)
HD2 (F = 5MHz)
HD3 (F = 5MHz)
R
LOAD
(Ω)
200 600 1000 1400 1800
01073-017
Figure 17. Harmonic Distortion vs. R
LOAD
–90
–100
–110
–70
–80
–
60
–120
200 600 1000 1400 1800
R
LOAD
(Ω)
DISTORTION (dBc)
HD3 (F = 5MHz)
HD2 (F = 5MHz)
HD3 (F = 20MHz)
HD2 (F = 20MHz)
V
S
=±5V
V
OUT, dm
=2Vp-p
01073-018
Figure 18. Harmonic Distortion vs. R
LOAD
FREQUENCY (MHz)
–50
–90
–110
–70
–30
–10
10
49.5 49.7 49.9 50.1 50.3 50.5
F
C
=50MHz
V
S
=±5V
P
OUT
(dBm)
0
1073-019
Figure 19. Intermodulation Distortion
FREQUENCY (MHz)
INTERCEPT (dBm)
30
25
35
40
45
R
L
=800Ω
V
S
=+5V
V
S
=±5V
0204060
01073-020
80
Figure 20. Third-Order Intercept vs. Frequency
V
S
=±5V
V
OUT, dm
V
OUT+
V
OUT–
V
+DIN
5ns1V
01073-021
Figure 21. Large Signal Transient Response
V
OUT, dm
=0.2Vp-p
V
S
=±5V
C
F
=0pF
C
F
=1pF
5ns40mV
01073-022
Figure 22. Small Signal Transient Response