AD8139 AD [Analog Devices], AD8139 Datasheet - Page 12

• Manufacturer Part Number: AD8139
• Description: Low Noise Rail-to-Rail Differential ADC Driver
• Manufacturer: AD [Analog Devices]

AD8139
–100
–110
–120
–130
–100
–110
–120
–130
–140
–150
–100
–110
–120
–130
Figure 26. Second Harmonic Distortion Vs. Output Amplitude
–30
–40
–50
–60
–70
–80
–90
–80
–90
–60
–70
–80
–90
Figure 25. Second Harmonic Distortion vs. Frequency and R
0.1
0
0
V
F
Figure 27. Harmonic Distortion vs. V
C
O, dm
= 2MHz
0.5
1
= 2.0V p-p
1.0
V
F
O, dm
C
2
= 2MHz
1.5
R
F
= 2V p-p
1
= 500Ω
FREQUENCY (MHz)
THIRD HARMONIC
3
SECOND HARMONIC
2.0
R
V
R
F
O, dm
V
F
= 200Ω
OCM
= 1kΩ
2.5
4
(V p-p)
(V)
V
V
S
S
3.0
=
= +5V
±
5
5V
10
OCM
3.5
, V
6
S
= +5 V
4.0
7
4.5
100
F
5.0
8
Rev. A | Page 12 of 24
–100
–110
–120
–130
–100
–110
–120
–130
–140
–150
–100
–110
–120
–130
–30
–40
–50
–60
–70
–80
–90
–80
–90
–60
–70
–80
–90
Figure 29. Third Harmonic Distortion vs. Output Amplitude
Figure 28. Third Harmonic Distortion vs. Frequency and R
0.1
–5
0
F
V
Figure 30. Harmonic Distortion vs. V
C
O, dm
= 2MHz
–4
1
= 2.0V p-p
V
F
–3
C
O, dm
= 2MHz
2
–2
= 2V p-p
1
R
FREQUENCY (MHz)
F
3
SECOND HARMONIC
–0
= 1k Ω
V
THIRD HARMONIC
O, dm
R
V
F
OCM
= 200 Ω
4
0
(V p-p)
(V)
V
S
1
= +5V
5
R
10
OCM
F
2
= 500 Ω
V
, V
S
6
=
S
= ±5 V
±
3
5V
7
4
F
100
8
5