参数资料
型号: AD8331
厂商: Analog Devices, Inc.
英文描述: Ultralow Noise VGAs with Preamplifier and Programmable RIN
中文描述: 超低噪声的VGA前置放大器和可编程与房地产经纪人
文件页数: 11/32页
文件大小: 482K
代理商: AD8331
AD8331/AD8332
Rev. C | Page 11 of 32
N
40
50
0
0.2
V
GAIN
(V)
0.6
0.4
30
10
0
20
5
1.0
0.8
1.1
35
45
25
15
0.1
0.5
0.3
0.9
0.7
HILO = LO, R
IN
= 50
HILO = LO, R
FB
=
HILO = HI, R
FB
=
HILO = HI, R
IN
= 50
f = 10MHz, R
S
= 50
0
Figure 27. Noise Figure vs. V
GAIN
N
30
10
20
GAIN (dB)
35
25
20
0
5
55
45
60
25
15
10
15
30
50
40
HILO = HI, R
IN
= 50
HILO = HI, R
FB
=
HILO = LO, R
IN
= 50
HILO = LO, R
FB
=
f = 10MHz, R
S
= 50
0
Figure 28. Noise Figure vs. Gain
H
–70
–60
–50
–40
–100
–90
–80
100M
1M
10M
HILO = HI,
HD3
–30
–20
–10
0
G = 30dB
V
OUT
= 1V
P-P
FREQUENCY (Hz)
0
HILO = LO,
HD3
HILO = HI,
HD2
HILO = LO,
HD2
Figure 29. Harmonic Distortion vs. Frequency
H
–70
–60
–50
–40
–100
–90
–80
200
800
0
600
400
1.0k
2.0k
1.8k
1.6k
1.4k
1.2k
–30
R
LOAD
(
)
HILO = LO,
HD3
HILO = LO,
HD2
f = 10MHz
V
OUT
= 1V p-p
HILO = HI,
HD2
HILO = HI,
HD3
0
Figure 30. Harmonic Distortion vs. R
LOAD
H
–70
–60
–50
–40
–100
–90
–80
10
40
50
0
30
20
C
LOAD
(pF)
HILO = HI,
HD3
HILO = LO,
HD2
HILO = LO,
HD3
f = 10MHz
V
OUT
= 1V p-p
0
HILO = HI,
HD2
Figure 31. Harmonic Distortion vs. C
LOAD
H
–70
–60
–50
–40
–100
–90
–80
1
4
0
3
2
f = 10MHz
GAIN = 30 dB
V
OUT
(V p-p)
HILO = LO,
HD3
HILO = HI,
HD3
HILO = LO,
HD2
0
HILO = HI,
HD2
Figure 32. Harmonic Distortion vs. Differential Output Voltage
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AD8331-EVAL Ultralow Noise VGAs with Preamplifier and Programmable RIN
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