ada4939-1 Analog Devices, Inc., ada4939-1 Datasheet - Page 12

• Manufacturer Part Number: ada4939-1
• Description: Ultralow Distortion Differential Adc Driver
• Manufacturer: Analog Devices, Inc.

ADA4939-1/ADA4939-2
Figure 25. Harmonic Distortion vs. Frequency at Various Output Voltages
–100
–100
–110
–120
–30
–40
–50
–60
–70
–80
–90
–60
–70
–80
–90
–10
–15
–20
–25
–30
–35
–40
–45
–50
–5
0
1
1
1
R
R
L, dm
L, dm
Figure 27. Return Loss (S11, S22) vs. Frequency
Figure 26. PSRR vs. Frequency, R
V
V
V
V
= 200Ω
OUT, dm
OUT, dm
OUT, dm
OUT, dm
= 200Ω
= HD2, = 1V p-p
= HD3, = 1V p-p
= HD2, = 2V p-p
= HD3, = 2V p-p
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
10
100
100
S22
L
= 200 Ω
V
S
= ±1.65V
100
1k
S11
1k
Rev. 0 | Page 12 of 24
–10
70
60
50
40
30
20
10
0
0.01
–30
–35
–40
–45
–50
–55
–60
–65
–70
–2
–4
–6
–8
8
6
4
2
0
1
0
Figure 29. Open-Loop Gain and Phase vs. Frequency
R
L, dm
0.1
Figure 28. Output Balance vs. Frequency
= 200Ω
Figure 30. Overdrive Recovery, G = 3.16
10
PHASE
1
FREQUENCY (MHz)
10
20
FREQUENCY (MHz)
GAIN
V
10
IN
TIME (ns)
× 3.16V
30
100
100
V
40
OUT
1k
50
10k
100
50
0
–50
–100
–150
–200
–250
–300
–350
6
1k
0