AD8131
–50
–50
–50
V
V
= ؎5V
V
= 3V
V
= 5V
S
HD3 (F = 5MHz)
S
S
,dm = 2V p-p
R ,dm = 800⍀
R ,dm = 800⍀
OUT
L
L
–60
–70
–60
–70
–60
–70
HD3 (F = 20MHz)
HD3 (F = 20MHz)
HD3 (F = 20MHz)
HD2 (F = 20MHz)
–80
–90
–80
–90
–80
–90
HD2 (F = 20MHz)
HD3 (F = 5MHz)
HD2 (F = 20MHz)
HD2 (F = 5MHz)
–100
–100
–100
HD2 (F = 5MHz)
HD2 (F = 5MHz)
HD3 (F = 5MHz)
–110
–110
–110
0.25
0.50
0.75
1.0
1.25
1.5
1.75
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
DIFFERENTIAL OUTPUT VOLTAGE – V p-p
200 300 400 500 600 700 800 900 1000
DIFFERENTIAL OUTPUT VOLTAGE – V p-p
R
– ⍀
LOAD
Figure 12. Harmonic Distortion vs.
Differential Output Voltage
Figure 11. Harmonic Distortion vs.
Differential Output Voltage
Figure 13. Harmonic Distortion vs.
RLOAD
–50
–50
10
V
V
= 3V
V
V
= 5V
S
S
f
= 50MHz
C
0
–10
–20
–30
–40
–50
,dm = 1V p-p
,dm = 2V p-p
HD3 (F = 20MHz)
OUT
OUT
V
= ؎5V
S
–60
–70
–60
–70
R ,dm = 800⍀
HD2 (F = 20MHz)
L
HD2 (F = 20MHz)
HD3 (F = 20MHz)
–80
–90
–80
–90
–60
–70
–80
–90
HD2 (F = 5MHz)
HD2 (F = 5MHz)
–100
–100
HD3 (F = 5MHz)
HD3 (F = 5MHz)
–100
–110
49.5
–110
–110
200 300 400 500 600 700 800 900 1000
200 300 400 500 600 700 800 900 1000
50
FREQUENCY – MHz
50.5
R
– ⍀
R
– ⍀
LOAD
LOAD
Figure 16. Intermodulation Distortion
Figure 15. Harmonic Distortion vs.
RLOAD
Figure 14. Harmonic Distortion vs.
RLOAD
45
R ,dm = 800⍀
L
V
= 5V
S
V
= ؎5V
S
40
35
30
25
V
,dm
OUT
V
= ؎5V
V
S
OUT+
OUT–
+DIN
V
= ؎5V
S
V
V
= 5V
S
V
20
15
40mV
1V
5ns
5ns
0
10
20
30
40
50
60 70
80
FREQUENCY – MHz
Figure 17. Third Order Intercept vs.
Frequency
Figure 19. Small Signal Transient
Response
Figure 18. Large Signal Transient
Response
REV. 0
–6–