AH225
1W High Linearity InGaP HBT Amplifier
Device Characterization Data
Gain and Max Stable Gain
De-embedded S-Parameters
45
Input Smith Chart
Output Smith Chart
1
1
4GHz
0.8
40
0.8
0.6
0.4
Gain (dB)
MSG (dB)
35
30
25
20
15
10
5
0.6
0.4
0.2
0
4GHz
0.2
0
-1
-0.75 -0.5 -0.25
0
0.25
0.75
00.5.05 GHz1
-0.2
-0.4
-0.6
-0.8
-1
-0.75 -0.5 -0.25
0.05 GHz
0
0.25
0.5
0.75
-0.2
-0.4
-0.6
-0.8
0
0
0.5
1
1.5
2
2.5
3
Frequency (MHz)
Note: The gain for the unmatched device in 50 ohm system is shown as the trace in blue color, Gain (dB). For a tuned circuit for a particular
frequency, it is expected that actual gain will be higher, up to the maximum stable gain. The maximum stable gain is shown in the red line,
DB [MSG]. The impedance loss plots are shown from 0.05-4 GHz.
S-Parameter Data
Vcc = +5 V, Icq = 300 mA, T = +25°C, unmatched 50 ohm system, calibrated to device leads
Freq (MHz) S11 (dB) S11 (ang)
S21 (dB) S21 (ang) S12 (dB) S12 (ang)
S22 (dB) S22 (ang)
50
-2.90
-1.57
-0.99
-0.81
-0.97
-1.12
-1.25
-1.53
-2.52
-4.69
-3.69
-6.45
-13.76
-10.27
-4.15
-1.93
-165.27
-171.34
179.84
169.25
152.64
145.10
136.77
128.95
110.16
91.38
32.12
28.59
23.57
17.96
12.56
11.02
10.01
9.29
136.60
116.71
100.17
86.66
69.77
62.27
54.20
46.48
27.07
5.44
-40.91
-38.86
-37.78
-37.58
-36.47
-36.53
-35.91
-35.54
-34.79
-33.84
-34.06
-33.35
-33.51
-34.02
-35.29
-34.70
46.68
-0.94
-1.66
-1.95
-2.15
-2.08
-2.19
-2.20
-2.19
-2.20
-1.92
-2.01
-1.80
-1.25
-0.81
-0.78
-0.99
-74.85
-113.38
-143.44
-162.82
-173.99
-175.67
-177.71
-178.63
-179.60
-179.47
179.89
179.99
179.43
175.18
171.95
167.43
100
31.54
200
17.25
400
7.00
800
-0.03
1000
1200
1400
1800
2100
2000
2200
2400
2600
2800
3000
-6.84
-8.53
-14.78
-32.76
-58.32
-50.56
-72.56
-107.65
-157.07
156.89
116.80
8.93
9.54
98.77
9.27
13.27
-4.317
-28.04
-57.83
-84.16
-104.79
86.18
9.79
87.27
10.01
8.85
171.20
159.31
143.93
6.56
3.19
Data Sheet: Rev F 05/17/12
© 2012 TriQuint Semiconductor, Inc.
Disclaimer: Subject to change without notice
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