AD8131
–50
–60
–70
–80
–50
–60
–70
–80
R
V
= 800Ω
V
R
= 5V
L, dm
S
= 1V p-p
= 800Ω
OUT, dm
L, dm
HD3 (F = 20MHz)
HD3 (V = 3V)
S
HD3 (V = 5V)
S
HD2 (F = 20MHz)
HD3 (F = 5MHz)
HD2 (V = 3V)
S
–90
–90
–100
–110
HD2 (V = 5V)
S
–100
HD2 (F = 5MHz)
–110
0
10
20
30
40
50
60
70
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
FREQUENCY (MHz)
DIFFERENTIAL OUTPUT VOLTAGE (V p-p)
Figure 11. Harmonic Distortion vs. Frequency
Figure 14. Harmonic Distortion vs. Differential Output Voltage
–50
–40
V
R
= 3V
R
= 800Ω
= 2V p-p
S
L, dm
HD3 (V = ±5V)
S
HD3 (F = 5MHz)
= 800Ω
V
L, dm
OUT, dm
–50
–60
–60
–70
–80
HD3 (F = 20MHz)
HD3 (V = +5V)
S
–70
–80
HD2 (F = 20MHz)
HD2 (V = ±5V)
S
–90
HD2 (V = +5V)
S
–90
–100
–110
HD2 (F = 5MHz)
–100
–110
0
10
20
30
40
50
60
70
0.25
0.50
0.75
1.0
1.25
1.5
1.75
FREQUENCY (MHz)
DIFFERENTIAL OUTPUT VOLTAGE (V p-p)
Figure 12. Harmonic Distortion vs. Frequency
Figure 15. Harmonic Distortion vs. Differential Output Voltage
–50
–55
–65
–75
–85
V
V
= ±5V
S
V
R
= ±5V
S
HD3 (F = 20MHz)
= 2V p-p
OUT, dm
= 800Ω
L, dm
–60
–70
–80
HD3 (F = 20MHz)
HD2 (F = 20MHz)
HD2 (F = 20MHz)
–90
HD2 (F = 5MHz)
–95
–100
–110
–105
HD3 (F = 5MHz)
4
HD2 (F = 5MHz)
HD3 (F = 5MHz)
300 400
–115
0
200
500
600
700
800
900
1000
1
2
3
5
6
R
(Ω)
LOAD
DIFFERENTIAL OUTPUT VOLTAGE (V p-p)
Figure 16. Harmonic Distortion vs. RLOAD
Figure 13. Harmonic Distortion vs. Differential Output Voltage
Rev. B | Page 10 of 20
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