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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： | 10/14页 |
| 文件大小： | 231K |
| 代理商： | AD8138-EVAL |
AD8138
–5–
REV. A
Typical Performance Characteristics–
FREQUENCY – MHz
GAIN
–
dB
–9
1
1000
0
10
100
–6
–3
3
6
VS = 5V
VIN = 0.2V p-p
CF = 0pF
VS = +5V
Figure 2. Small Signal Frequency
Response
FREQUENCY – MHz
GAIN
–
dB
–9
1
1000
0
10
100
–6
–3
3
6
VS = 5V
VIN = 2V p-p
CF = 0pF
VS = +5V
Figure 5. Large Signal Frequency
Response
FUNDAMENTAL FREQUENCY – MHz
010
70
20
30
40
50
60
DISTORTION
–
dBc
–50
–120
–90
–100
–110
–70
–80
HD2(VS = +5V)
–60
HD2(VS = 5V)
VOUT,dm = 2V p-p
RL = 800
HD3(VS = +5V)
HD3(VS = 5V)
Figure 8. Harmonic Distortion vs.
Frequency
FREQUENCY – MHz
GAIN
–
dB
–9
1
1000
0
10
100
–6
–3
3
6
CF = 1pF
VS = 5V
VIN = 0.2V p-p
CF = 0pF
Figure 3. Small Signal Frequency
Response
FREQUENCY – MHz
GAIN
–
dB
–9
1
1000
0
10
100
–6
–3
3
6
CF = 1pF
VIN = 2V p-p
VS = 5V
CF = 0pF
Figure 6. Large Signal Frequency
Response
FUNDAMENTAL FREQUENCY – MHz
010
70
20
30
40
50
60
DISTORTION
–
dBc
–50
–90
–100
–110
–70
–80
HD2(VS = +5V)
–60
HD2(VS = 5V)
VOUT,dm = 4V p-p
RL = 800
–40
HD3(VS = 5V)
HD3(VS = +5V)
Figure 9. Harmonic Distortion vs.
Frequency
FREQUENCY – MHz
GAIN
–
dB
–0.5
1
0.1
10
100
–0.3
–0.1
0.3
0.5
CF = 1pF
VS = 5V
VIN = 0.2V p-p
CF = 0pF
Figure 4. 0.1 dB Flatness vs.
Frequency
FREQUENCY – MHz
GAIN
–
dB
–10
1
1000
10
100
0
VS = 5V
CF = 0pF
VOUT,dm = 0.2V p-p
RG = 499
G = 10, RF = 4.99k
20
30
G = 5, RF = 2.49k
G = 2, RF = 1k
G = 1, RF = 499
Figure 7. Small Signal Frequency
Response for Various Gains
VOCM DC OUTPUT – Volts
–4
–3
3
–2
–1
0
1
2
DISTORTION
–
dBc
–50
–90
–100
–70
–80
–60
HD2(VS = 5)
HD2(VS = +5)
VOUT,dm = 2V p-p
RL = 800
FO = 20MHz
–40
–30
4
HD3(VS = 5)
HD3(VS = +5)
Figure 10. Harmonic Distortion vs.
VOCM
Unless otherwise noted, GAIN = 1, RG = RF = RL,dm = 499
, TA = +25 C; Refer to Figure 1 for test setup.
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