DC-to-Microwave, +5V Low-Noise Amplifier
______________________________________________________________Pin Description
PIN
NAME
FUNCTION
Amplifier Input. Use a series blocking capacitor with less than 3Ω reactance at your lowest operating
frequency.
IN
1
Ground Connection. For optimum performance, provide a low-inductance connection to the ground
plane.
2
GND
OUT
Amplifier Output. Use a series blocking capacitor with less than 3Ω reactance at your lowest operat-
ing frequency.
3
Supply Connection. Bypass directly at the package pin. The value of the bypass capacitor is deter-
mined by the lowest operating frequency and is typically the same as the blocking capacitor value.
V
CC
4
For long V
lines, additional bypassing may be necessary.
CC
Table 1. Typical Scattering Parameters
(V
= +5V, Z = 50Ω, T = +25°C.)
0 A
CC
FREQUENCY
(GHz)
S11
(mag)
S11
(ang)
S21
(dB)
S21
(mag)
S21
(ang)
S12
(dB)
S12
(mag)
S12
(ang)
S22
(mag)
S22
(ang)
K
0.05
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.20
1.40
1.60
1.80
2.00
2.20
2.40
2.50
0.17
0.17
0.16
0.14
0.16
0.16
0.17
0.18
0.18
0.20
0.20
0.19
0.16
0.15
0.22
0.33
0.41
0.44
0.44
-3
-6
19.8
19.8
19.7
19.7
19.6
19.5
19.3
19.0
18.6
18.0
17.4
15.7
13.4
10.6
7.4
9.76
9.72
9.69
9.70
9.52
9.43
9.21
8.93
8.46
7.92
7.40
6.10
4.69
3.40
2.35
1.70
1.43
1.34
1.30
177
172
161
151
140
129
119
107
95
84
73
51
31
14
5
-37.8
-36.7
-35.8
-35.0
-33.8
-33.2
-32.3
-31.7
-31.1
-29.5
-28.7
-26.9
-25.5
-24.4
-24.4
-25.3
-26.5
-28.6
-29.5
0.013
0.015
0.016
0.018
0.020
0.022
0.024
0.026
0.028
0.033
0.037
0.045
0.053
0.060
0.060
0.055
0.047
0.037
0.034
8
0.42
0.39
0.37
0.35
0.32
0.28
0.25
0.21
0.17
0.13
0.10
0.05
0.12
0.24
0.35
0.43
0.46
0.49
0.49
-5
3.18
2.92
2.70
2.54
2.31
2.24
2.12
2.09
2.10
1.91
1.88
1.88
2.03
2.32
3.01
3.97
4.85
6.26
7.05
14
23
28
32
34
37
41
44
48
50
52
51
44
32
22
21
22
22
-6
9
-13
-19
-26
-34
-43
-53
-62
-71
-76
-49
-12
-17
-27
-33
-33
-29
-25
8
0
-7
-17
-26
-39
-54
-66
-86
-86
-66
-40
-36
-38
-37
-37
4.6
4
3.1
6
2.5
6
2.3
4
4
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