ada4950-1 Analog Devices, Inc., ada4950-1 Datasheet - Page 11

• Manufacturer Part Number: ada4950-1
• Description: Low Power, Selectable Gain Differential Adc Driver, G = 1, 2, 3
• Manufacturer: Analog Devices, Inc.

Figure 19. 0.1 dB Flatness, Small-Signal Frequency Response for Various
Figure 20. V
–100
–110
–120
–130
–140
Figure 21. Harmonic Distortion vs. Frequency at Various Loads
–40
–50
–60
–70
–80
–90
–0.1
–0.2
–0.3
–0.4
–0.5
–1
–2
–3
–4
–5
–6
–7
–8
2
1
0
0.5
0.4
0.3
0.2
0.1
0.1
0
1
1
V
V
OCM
OUT, dm
OCM
V
V
V
V
OCM
OCM
OCM
HD2, R
HD3, R
HD2, R
HD3, R
ADA4950-1, R
ADA4950-1, R
ADA4950-2, AMP 1, R
ADA4950-2, AMP 1, R
ADA4950-2, AMP 2, R
ADA4950-2, AMP 2, R
OUT, dm
Small-Signal Frequency Response at Various DC Levels
(AC) = 100mV p-p
= –2.5VDC
= 0V
= +2.5VDC
= 2V p-p
L, dm
L, dm
L, dm
L, dm
= 100mV p-p
= 1kΩ
= 1kΩ
= 200Ω
= 200Ω
10
L
L
1
FREQUENCY (MHz)
10
FREQUENCY (MHz)
= 1kΩ
= 200Ω
FREQUENCY (MHz)
Loads
L
L
L
L
= 1kΩ
= 200Ω
= 1kΩ
= 200Ω
100
10
100
1000
100
1000
Rev. 0 | Page 11 of 28
Figure 22. 0.1 dB Flatness, Large-Signal Frequency Response for Various Loads
Figure 23. V
–100
–110
–120
–130
–140
Figure 24. Harmonic Distortion vs. Frequency at Various Gains
–40
–50
–60
–70
–80
–90
–0.2
–0.3
–0.4
–0.5
–0.1
–1
–2
–3
–4
–5
–6
–7
–8
0.5
0.4
0.3
0.2
0.1
2
1
0
0.1
0
1
1
V
OCM
OUT, dm
V
V
V
V
OCM
V
OCM
OCM
OCM
ADA4950-1, R
ADA4950-1, R
ADA4950-2, AMP 1, R
ADA4950-2, AMP 1, R
ADA4950-2, AMP 2, R
ADA4950-2, AMP 2, R
OUT, dm
Large-Signal Frequency Response at Various DC Levels
(AC) = 2V p-p
= –2.5VDC
= 0V
= +2.5VDC
= 2V p-p
HD2, G = 1
HD3, G = 1
HD2, G = 2
HD3, G = 2
HD2, G = 3
HD3, G = 3
= 2V p-p
10
1
L
L
10
FREQUENCY (MHz)
FREQUENCY (MHz)
= 1kΩ
= 200Ω
FREQUENCY (MHz)
ADA4950-1/ADA4950-2
L
L
L
L
= 1kΩ
= 200Ω
= 1kΩ
= 200Ω
100
10
100
1000
100
1000