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参数资料
| 型号： | AD8138-EVAL |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Low Distortion Differential ADC Driver |
| 中文描述： | 低失真差分ADC驱动器 |
| 文件页数： | 11/14页 |
| 文件大小： | 231K |
| 代理商： | AD8138-EVAL |
AD8138
–6–
REV. A
DIFFERENTIAL OUTPUT VOLTAGE – V p-p
0
6
DISTORTION
–
dBc
–120
–90
–100
–110
–70
–80
–60
HD3(F = 5MHz)
VS = 5V
RL = 800
5
4
3
2
1
HD3(F = 20MHz)
HD2(F = 5MHz)
HD2(F = 20MHz)
Figure 11. Harmonic Distortion vs.
Differential Output Voltage
RLOAD –
200
DISTORTION
–
dBc
–90
–100
–110
–70
–80
–60
HD3(F = 5MHz)
VS = +5V
VOUT,dm = 2V p-p
HD3(F = 20MHz)
HD2(F = 5MHz)
HD2(F = 20MHz)
600
1000
1400
1800
Figure 14. Harmonic Distortion vs.
RLOAD
FREQUENCY – MHz
0
INTERCEPT
–
dBm
30
VS = +5V
20
VS = 5V
25
35
40
45
40
60
80
RL = 800
Figure 17. Third Order Intercept vs.
Frequency
DIFFERENTIAL OUTPUT VOLTAGE – V p-p
0
DISTORTION
–
dBc
–120
–90
–100
–110
–70
–80
–60
HD3(F = 5MHz)
VS = +5V
RL = 800
1
HD3(F = 20MHz)
HD2(F = 5MHz)
HD2(F = 20MHz)
23
4
Figure 12. Harmonic Distortion vs.
Differential Output Voltage
RLOAD –
200
DISTORTION
–
dBc
–90
–100
–110
–70
–80
–60
HD3(F = 5MHz)
HD3(F = 20MHz)
HD2(F = 5MHz)
HD2(F = 20MHz)
VS = 5V
VOUT,dm = 2V p-p
600
1000
1400
1800
–120
Figure 15. Harmonic Distortion vs.
RLOAD
5ns
1V
V+DIN
VOUT,dm
VS = 5V
VOUT+
VOUT–
Figure 18. Large Signal Transient
Response
DIFFERENTIAL OUTPUT VOLTAGE – V p-p
0.25
DISTORTION
–
dBc
–90
–100
–110
–70
–80
–60
HD3(F = 5MHz)
VS = +3V
RL = 800
HD3(F = 20MHz)
HD2(F = 5MHz)
HD2(F = 20MHz)
0.50
0.75
1.00
1.25
1.50
1.75
Figure 13. Harmonic Distortion vs.
Differential Output Voltage
FREQUENCY – MHz
49.5
P
OUT
–
dBm
–50
–90
–110
–70
FC = 50MHz
VS = 5V
–30
–10
10
49.7
49.9
50.1
50.3
50.5
Figure 16. Intermodulation
Distortion
VOUT,dm = 0.2V p-p
VS = 5V
CF = 0pF
CF = 1pF
5ns
40mV
Figure 19. Small Signal Transient
Response
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