Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
1
Specifications subject to change without notice. 6/99A
General Purpose PHEMT Chip
Features
s
Low Noise Figure, 1.25 dB @ 4 GHz
s
High Associated Gain, 15.0 dB @ 4 GHz
s
High MAG, > 18 dB @ 4 GHz
s
0.7
m Ti/Pd/Au Gates
s
Passivated Surface
Description
The AFP02N8-000 general purpose PHEMT chip has
excellent gain and noise performance through X band,
making it suitable for a wide range of commercial and military
applications.The device employs 0.7
m Ti/Pd/Au gates and
surface passivation to ensure a rugged, reliable part.
AFP02N8-000
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Saturated Drain Current (I
DSS
)
V
DS
= 2 V, V
GS
= 0 V
25.0
45.0
90.0
mA
Transconductance (gm)
V
DS
= 2 V, I
DS
= 15 mA
40.0
55.0
mS
Pinch-off Voltage (V
P
) V
DS
= 2 V, I
DS
= 0.3 mA
-0.2
-0.6
-2.0
V
Gate to Source
I
GS
= -200
A
-4.0
-6.0
V
Breakdown Voltage (V
bgs
)
Noise Figure (NF)
V
DS
= 2 V, I
DS
= 15 mA, F = 4 GHz
1.25 1.75
dB
Associated Gain (G
A
) 14.0
15.0
dB
Noise Figure (NF)
V
DS
= 2 V, I
DS
= 15 mA, F = 12 GHz
2.6
3.0
dB
Associated Gain (G
A
)
8.5 9.4
dB
Electrical Specifications at 25C
78
50
50
50
400
50
20
125
350
D
S
S
G
G
D
Characteristic
Value
Drain to Source Voltage (V
DS
) 6
V
Gate to Source Voltage (V
GS
) -3
V
Drain Current (I
DS
) I
DSS
Gate Current (I
GS
) 10
A
Total Power Dissipation (P
T
) 300
mW
Storage Temperature (T
ST
)
-65 to +150C
Channel Temperature (T
CH
) 175C
Absolute Maximum Ratings
2
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 6/99A
General Purpose PHEMT Chip
AFP02N8-000
0
4
8
12
16
20
24
0
0
2
4
6
8
10
12
14
16
18
20
1
2
3
4
6
5
N
F
M
I
N
(
d
B
)
G
A
(
d
B
)
Frequency (GHz)
RF Minimum Noise Figure (NF
MIN
) and
Associated Gain (G
A
) vs. Frequency (GHz)
V
DS
= 2 V, I
DS
= 15 mA
G
A
(dB)
NF
MIN
(dB)
100
0
1.0
1.5
2.5
0.5
2.0
3.0
50
0
V
DS
(V)
l
D
S
(
m
A
)
DC Drain Current (I
DS
) vs. Drain Voltage (V
DS
)
as a Function of Gate to Source Voltage (V
GS
)
0
5
10
15
20
25
30
40
35
I
DS
(mA)
N
F
M
I
N
(
d
B
)
G
A
(
d
B
)
RF Minimum Noise Figure (NF
MIN
) and
Associated Gain (G
A
) vs. Drain Current (I
DS
)
F = 12 GHz, V
DS
= 2 V
0
2
4
6
8
12
0
1
2
3
4
6
10
5
NF
MIN
(dB)
G
A
(dB)
100
0
-2.0
-1.0
0
100
0
50
50
1.0
g
m
(
m
S
)
V
GS
(V)
l
D
S
(
m
A
)
V
DS
= 2 V
DC Drain Current (I
DS
) and
Transconductance (gm) vs.
Gate to Source Voltage (V
GS
)
Typical Performance Data
General Purpose PHEMT Chip
AFP02N8-000
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
3
Specifications subject to change without notice. 6/99A
Typical S-Parameters (V
DS
= 2 V, I
DS
= 10 mA)
Freq.
NF
MIN
opt
(GHz)
(dB)
Mag.
Ang.
R
N
/50
G
A
(dB)
1
0.70
0.88
13.30
0.01
23.00
2
0.88
0.78
27.30
0.13
18.30
4
1.22
0.62
53.60
0.27
15.35
6
1.59
0.52
77.60
0.31
13.22
8
1.95
0.46
99.40
0.31
11.67
10
2.30
0.44
119.20
0.29
10.30
12
2.63
0.44
136.90
0.25
9.24
14
3.00
0.46
152.80
0.21
8.25
16
3.35
0.50
166.90
0.17
7.49
18
3.70
0.54
179.30
0.15
6.59
20
4.00
0.57
-169.90
0.16
5.46
22
4.37
0.59
-160.60
0.20
5.05
24
4.73
0.60
-152.70
0.28
4.85
26
5.10
0.57
-146.20
0.39
4.86
Typical Noise Parameters
(V
DS
= 2 V, I
DS
= 15 mA)
Both noise and S-parameters include bond wires. Two gate
bond wires and two drain wires are each approximately
325
m (13 mil) long. Four source bond wires (2 each side)
are each approximately 200
m (8 mil) long. All wire is
17
m (0.7 mil) diameter gold.
Freq.
S
11
S
21
S
12
S
22
S
21
MAG/
(GHz)
Mag.
Ang.
Mag.
Ang.
Mag.
Ang.
Mag.
Ang.
k
(dB)
MSG (dB)
2
0.946
-37.71
3.892
150.07
0.041
67.60
0.739
-15.73
0.216
11.803
19.774
3
0.909
-54.69
3.615
138.06
0.057
58.11
0.714
-22.39
0.273
11.162
18.022
4
0.866
-70.13
3.322
126.96
0.068
50.39
0.688
-27.24
0.350
10.428
16.889
5
0.830
-84.40
3.016
116.85
0.078
42.85
0.658
-32.95
0.426
9.589
15.873
6
0.801
-96.78
2.747
108.11
0.084
36.92
0.640
-37.16
0.494
8.777
15.146
7
0.776
-107.46
2.504
100.24
0.088
32.24
0.621
-40.57
0.577
7.973
14.542
8
0.760
-117.10
2.285
93.26
0.091
28.30
0.607
-44.11
0.643
7.178
13.998
9
0.746
-125.45
2.098
86.79
0.093
25.09
0.599
-47.10
0.715
6.436
13.533
10
0.733
-131.77
1.937
81.28
0.095
22.67
0.589
-50.14
0.795
5.743
13.094
11
0.723
-138.16
1.805
75.95
0.096
20.83
0.589
-52.95
0.855
5.130
12.742
12
0.714
-143.64
1.687
70.89
0.097
19.25
0.585
-55.52
0.929
4.542
12.403
13
0.702
-148.82
1.586
66.16
0.097
17.91
0.583
-58.82
1.014
4.006
11.418
14
0.696
-153.98
1.502
61.42
0.098
16.87
0.581
-61.53
1.071
3.533
10.232
15
0.689
-158.65
1.424
56.91
0.098
16.14
0.577
-64.16
1.152
3.070
9.259
16
0.681
-163.77
1.359
52.41
0.098
15.37
0.579
-67.35
1.214
2.664
8.625
17
0.671
-168.77
1.300
47.92
0.099
15.16
0.574
-70.36
1.291
2.279
7.944
18
0.666
-173.79
1.243
43.61
0.099
14.58
0.570
-73.60
1.367
1.889
7.373
4
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 6/99A
General Purpose PHEMT Chip
AFP02N8-000
Typical S-Parameters (V
DS
= 2 V, I
DS
= 30 mA)
Freq.
S
11
S
21
S
12
S
22
S
21
MAG/
(GHz)
Mag.
Ang.
Mag.
Ang.
Mag.
Ang.
Mag.
Ang.
k
(dB)
MSG (dB)
2
0.942
-41.56
4.452
148.27
0.034
67.38
0.630
-16.20
0.27
12.97
21.17
3
0.904
-59.91
4.086
135.96
0.047
58.52
0.606
-22.82
0.33
12.23
19.39
4
0.863
-76.17
3.703
124.86
0.056
51.14
0.585
-27.90
0.42
11.37
18.20
5
0.829
-90.97
3.328
114.87
0.064
44.47
0.559
-33.10
0.50
10.44
17.16
6
0.804
-103.55
3.007
106.34
0.069
39.39
0.545
-37.24
0.58
9.56
16.39
7
0.783
-114.26
2.717
98.74
0.072
35.51
0.530
-40.37
0.68
8.68
15.77
8
0.770
-123.73
2.467
92.01
0.075
32.58
0.522
-43.96
0.74
7.84
15.17
9
0.759
-131.90
2.253
85.83
0.076
30.08
0.517
-47.08
0.83
7.06
14.72
10
0.747
-138.10
2.075
80.51
0.078
28.62
0.509
-50.12
0.92
6.34
14.25
11
0.741
-144.38
1.928
75.43
0.079
27.69
0.512
-52.73
0.98
5.70
13.88
12
0.731
-149.68
1.797
70.53
0.080
27.07
0.512
-55.37
1.07
5.09
11.96
13
0.721
-154.66
1.684
65.99
0.082
26.39
0.510
-58.89
1.14
4.53
10.86
14
0.716
-159.81
1.594
61.39
0.084
26.21
0.509
-61.45
1.19
4.05
10.17
15
0.711
-164.36
1.508
57.05
0.085
26.37
0.508
-64.01
1.25
3.57
9.45
16
0.703
-169.44
1.437
52.71
0.086
26.37
0.511
-67.45
1.32
3.15
8.86
17
0.696
-174.29
1.371
48.36
0.088
26.51
0.507
-70.47
1.38
2.74
8.26
18
0.690
-179.19
1.308
44.18
0.090
26.72
0.504
-73.67
1.44
2.33
7.69
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