AD8120 Просмотр технического описания (PDF) - Analog Devices
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AD8120 Datasheet PDF : 16 Pages
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Data Sheet
AD8120
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, VS = ±5 V, RL = 150 Ω, 10% to 90% input rise/fall time (tR/tF) = 4 ns, unless otherwise noted.
4
DELAY CODE = 63
2
DELAY CODE = 33
0
–2
DELAY CODE = 1
–4
DELAY CODE = 2
–6
–8
6
DELAY CODE = 63
4
DELAY CODE = 33
2
0
–2
DELAY CODE = 1
–4
DELAY CODE = 2
–6
–8
–10
–10
–12
0.3
1
10
100
1k
FREQUENCY (MHz)
Figure 4. Small-Signal Frequency Response for Various Delay Settings,
VOUT = 0.2 V p-p
–12
0.3
1
10
100
1k
FREQUENCY (MHz)
Figure 7. Video Signal Frequency Response for Various Delay Settings,
VOUT = 1.4 V p-p
0.25
DELAY CODE = 0
0.20
DELAY CODE = 33
DELAY CODE = 63
0.15
INPUT
0.10
0.05
0
VS = ±5V
LOAD = 150Ω
–0.05
–20
0
20
40
60
TIME (ns)
80
100
120
Figure 5. Small-Signal Pulse Response for Various Delay Settings
1.8
1.6 DELAY CODE = 0
1.4
DELAY CODE = 33
DELAY CODE = 63
1.2
1.0 INPUT
0.8
0.6
0.4
0.2
0
VS = ±5V, LOAD = 150Ω
–0.2
–20
0
20
40
60
TIME (ns)
80
100
120
Figure 8. Large-Signal Pulse Response for Various Delay Settings
50 1
DELAY CODE
12
22
33
44
55
62
45
40
35
30
25
20
15
10
5
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
ANALOG CONTROL VOLTAGE (V)
Figure 6. Relative Delay vs. Delay Code and Analog Control Voltage
120
110
100
THREE CHANNELS
90
80
TWO CHANNELS
70
60
ONE CHANNEL
50
40
0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64
DELAY CODE
Figure 9. Quiescent Current vs. Delay Code
Rev. A | Page 7 of 16
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