L to Ku Band Low Noise NE71383B
N-Channel GaAs MESFET
FEATURES
• LOW NOISE FIGURE:
NF = 0.6 dB typ at f = 4 GHz
NF = 1.6 dB typ at f = 12 GHz
• HIGH ASSOCIATED GAIN:
14 dB typ at f = 4 GHz
• GATE WIDTH:
W
G
= 280
µm
• GATE LENGTH:
L
G
= 0.3
µm
• EPITAXIAL TECHNOLOGY
• LOW PHASE NOISE PERFORMANCE
0
1
2
4
6
8 10
14
20
30
2.5
V
DS
= 3 V
l
D
= 10 mA
NOISE FIGURE, ASSOCIATED GAIN
vs. FREQUENCY
24
Noise Figure, NF (dB)
2
20
1.5
G
A
16
1.0
12
0.5
NF
8
4
DESCRIPTION
The NE71383B is a high performance GaAs MESFET provid-
ing a low noise figure and high associated gain through Ku-
band. This device features a recessed 0.3 micron gate and
triple epitaxial technology, and is ideal for low phase noise
oscillator and buffer amplifier applications. The NE71383B is
housed in a hermetically sealed metal/ceramic package.
NEC's stringent quality assurance and test procedures ensure
the highest reliability and performance.
Frequency, f (GHz)
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
NF
PARAMETERS AND CONDITIONS
Noise Figure , V
DS
= 3V, I
DS
= 10 mA, f = 4 GHz
V
DS
= 3V, I
DS
= 10 mA, f = 12 GHz
Associated Gain, V
DS
= 3V, I
DS
= 10 mA, f = 4 GHz
V
DS
= 3V, I
DS
= 10 mA, f = 12 GHz
Output Power at 1 dB Gain Compression Point,
V
DS
= 3 V, I
DS
= 30 mA, f = 12 GHz
Saturated Drain Current, V
DS
= 3 V, V
GS
= 0 V
Transconductance, V
DS
= 3 V, I
DS
= 10 mA
Gate to Source Leakage Current, V
GS
= -5 V
Gate to Source Cutoff Voltage, V
DS
= 3 V, I
DS
= 100
µA
Thermal Resistance (Channel to Case)
UNITS
dB
mS
dB
dB
11.5
8.0
MIN
NE71383B
83B
TYP
0.6
1.6
14.0
9.5
MAX
0.7
1.8
G
A
P
1dB
dBm
mA
mS
µA
V
°C/W
-0.5
20
20
14.5
40
50
1.0
-1.1
10
-3.5
450
120
I
DSS
g
M
I
GSO
V
GS(off)
R
TH
California Eastern Laboratories
Associated Gain, G
A
(dB)
NE71383B
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25°C)
SYMBOLS
V
DS
V
GSO
I
DS
V
GDO
T
CH
T
STG
P
T
PARAMETERS
Drain to Source Voltage
Gate to Source Voltage
Drain Current
Gate to Drain Voltage
Channel Temperature
Storage Temperature
Total Power Dissipation
UNITS
V
V
mA
V
°C
°C
mW
RATINGS
5.0
–5.0
I
DSS
-6.0
175
-65 to +175
270
TYPICAL NOISE PARAMETERS
(T
A
= 25°C)
V
DS
= 3 V, I
DS
= 10 mA
FREQ.
(GHz)
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
NF
OPT
(dB)
0.55
0.58
0.60
0.71
0.80
0.90
1.00
1.15
1.30
1.45
1.60
1.75
1.90
2.04
2.25
2.38
2.55
G
A
(dB)
17.0
15.2
14.0
13.0
12.3
11.6
11.0
10.4
10.0
9.5
9.0
8.6
8.2
8.0
7.6
7.3
7.0
Γ
OPT
MAG
0.81
0.75
0.70
0.67
0.65
0.64
0.64
0.64
0.64
0.64
0.63
0.62
0.60
0.57
0.53
0.46
0.38
ANG
37
53
69
83
97
111
123
136
148
161
173
-173
-159
-145
-129
-113
-95
Rn/50
0.57
0.51
0.44
0.37
0.31
0.25
0.19
0.14
0.10
0.06
0.05
0.05
0.08
0.15
0.23
0.34
0.44
Note:
1. Operation in excess of any one of these conditions may result in
permanent damage.
RECOMMENDED OPERATING CONDITIONS
SYMBOLS
V
DS
I
D
P
IN
PARAMETERS
Drain to Source Voltage
Drain Current
Input Power
UNITS MIN
V
mA
dBm
TYP MAX
3
10
4
30
15
TYPICAL PERFORMANCE CURVES
(T
A
= 25°C)
TOTAL POWER DISSIPATION vs.
AMBIENT TEMPERATURE
400
DRAIN CURRENT vs.
DRAIN TO SOURCE VOLTAGE
V
GS
= 0 V
Total Power Dissipation, P
T
(mW)
300
Drain Current, I
DS
(mA)
40
-0.2 V
30
NE71383B
200
20
-0.4 V
100
-0.6 V
10
0
50
100
150
200
0
1
2
3
4
5
Ambient Temperature, T
A
(°C)
DRAIN CURRENT vs.
GATE TO SOURCE VOLTAGE
50
V
DS
= 3 V
Drain to Source Voltage, V
DS
(V)
Drain Current, I
DS
(mA)
40
30
20
10
0
-2.0
-1.0
0
Drain to Source Voltage, V
GS
(V)
NE71383B
TYPICAL COMMON SOURCE SCATTERING PARAMETERS
(T
A
= 25°C)
.8
.6
.4
3
.2
4
5
1
1.5
2
90˚
135˚
45˚
S
22
0
.2
.4
.6
.8
1
1.5
2
3
4 5
10 20
10
20
-20
-10
S
12
S
11
180˚
.025
.050
.075
0˚
S
21
1.000
-.2
-3
-.4
-2
-.6
-.8
-1
-1.5
-5
-4
2.000
225˚
3.000
315˚
270˚
V
D
= 3 V, I
DS
= 10 mA
FREQUENCY
(GHz)
0.10
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00
15.50
16.00
16.50
17.00
17.50
18.00
MAG
1.001
0.997
0.987
0.977
0.963
0.949
0.934
0.912
0.890
0.864
0.835
0.808
0.785
0.766
0.752
0.739
0.730
0.714
0.704
0.690
0.675
0.661
0.648
0.639
0.639
0.637
0.634
0.629
0.621
0.608
0.598
0.585
0.576
0.571
0.567
0.566
0.568
S
11
ANG
-2.14
-10.89
-21.63
-32.12
-42.61
-53.03
-63.35
-73.70
-83.94
-93.86
-103.65
-112.98
-121.98
-130.87
-139.43
-147.72
-155.90
-163.63
-171.19
-178.78
173.92
166.65
159.39
152.99
146.35
139.92
133.24
126.90
120.42
114.04
107.64
101.18
94.99
89.08
83.11
77.63
72.06
MAG
3.230
3.230
3.198
3.165
3.131
3.084
3.033
2.971
2.900
2.809
2.716
2.626
2.540
2.450
2.374
2.297
2.222
2.143
2.076
2.000
1.909
1.840
1.774
1.700
1.646
1.598
1.550
1.499
1.453
1.401
1.357
1.320
1.282
1.249
1.218
1.193
1.179
S
21
ANG
178.00
169.69
159.56
149.72
139.95
130.17
120.45
110.66
101.02
91.47
82.14
73.20
64.80
56.31
47.88
39.58
31.56
23.28
15.25
7.23
-0.71
-8.30
-15.57
-21.98
-29.27
-36.37
-43.53
-50.71
-57.91
-64.75
-71.74
-78.79
-85.50
-91.80
-98.38
-104.91
-111.27
MAG
0.002
0.011
0.022
0.032
0.043
0.052
0.060
0.068
0.074
0.080
0.084
0.087
0.090
0.092
0.093
0.093
0.094
0.093
0.093
0.092
0.091
0.089
0.088
0.087
0.086
0.085
0.085
0.084
0.085
0.085
0.086
0.086
0.087
0.089
0.090
0.093
0.096
S
12
ANG
87.30
81.94
74.10
66.76
59.19
51.65
44.49
37.23
30.07
23.11
16.62
10.30
4.36
-1.43
-6.91
-12.26
-17.22
-21.98
-26.66
-31.23
-35.42
-39.35
-42.96
-46.30
-49.43
-52.43
-55.47
-58.63
-61.82
-65.09
-68.61
-72.28
-75.68
-79.08
-82.47
-85.99
-89.67
MAG
0.705
0.702
0.695
0.687
0.678
0.667
0.653
0.638
0.622
0.603
0.583
0.564
0.549
0.537
0.529
0.524
0.525
0.526
0.529
0.532
0.535
0.539
0.545
0.556
0.568
0.585
0.603
0.621
0.638
0.649
0.658
0.664
0.670
0.678
0.688
0.701
0.717
S
22
ANG
-1.39
-7.48
-14.99
-22.34
-29.71
-37.07
-44.51
-52.08
-59.69
-67.53
-75.33
-83.34
-91.44
-99.73
-107.98
-116.19
-124.33
-132.32
-140.37
-148.27
-156.31
-164.00
-171.63
-179.03
173.97
167.46
161.35
155.40
149.95
144.57
139.23
134.14
128.95
123.94
119.40
114.96
110.87
-0.060
0.061
0.127
0.158
0.196
0.231
0.262
0.311
0.359
0.417
0.487
0.555
0.607
0.655
0.694
0.737
0.755
0.817
0.850
0.913
0.992
1.074
1.140
1.193
1.204
1.206
1.192
1.205
1.194
1.244
1.269
1.329
1.357
1.340
1.327
1.249
1.138
K
MAG
1
(dB)
32.088
24.678
21.625
19.952
18.622
17.731
17.037
16.404
15.932
15.455
15.097
14.798
14.506
14.254
14.070
13.927
13.736
13.625
13.487
13.372
13.218
11.493
10.772
10.254
10.087
10.000
9.961
9.781
9.667
9.192
8.862
8.430
8.114
7.987
7.893
8.075
8.635
Notes:
1.Gain Calculations:
MAG =
|S
21
|
|S
12
|
(
K
±
K
2
- 1
).
When K
≤
1, MAG is undefined and MSG values are used. MSG =
2
2
2
|S
21
|
, K = 1 + |
∆
| - |S
11
| - |S
22
|
,
∆
= S
11
S
22
- S
21
S
12
|S
12
|
2 |S
12
S
21
|
MAG = Maximum Available gain
MSG = Maximum Stable Gain
NE71383B
TYPICAL SCATTERING PARAMETERS
(T
A
= 25°C)
.8
.6
.4
3
.2
4
5
1
1.5
2
90˚
135˚
45˚
S
22
0
.2
.4
.6
.8
1
1.5
2
3
4 5
10 20
10
20
S
21
S
11
S
12
.025 .050 .075
1.000
2.000
0.100
180˚
0˚
-20
-10
-.2
-3
-.4
-2
-.6
-.8
-1
-1.5
-5
-4
225˚
3.000
315˚
270˚
V
D
= 3 V, I
DS
= 20 mA
FREQUENCY
(GHz)
0.10
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00
15.50
16.00
16.50
17.00
17.50
18.00
Notes:
1.Gain Calculations:
MAG =
|S
21
|
|S
12
|
S
11
MAG
1.001
0.997
0.985
0.973
0.957
0.940
0.921
0.897
0.872
0.843
0.813
0.786
0.762
0.744
0.729
0.716
0.707
0.691
0.681
0.667
0.652
0.638
0.626
0.617
0.616
0.614
0.611
0.604
0.595
0.581
0.570
0.556
0.547
0.542
0.536
0.534
0.534
ANG
-2.26
-11.39
-22.63
-33.57
-44.49
-55.30
-65.94
-76.59
-87.05
-97.16
-107.09
-116.54
-125.62
-134.59
-143.20
-151.52
-159.71
-167.44
-174.99
177.44
170.14
162.87
155.54
149.12
142.52
136.10
129.41
123.13
116.67
110.37
104.05
97.62
91.51
85.69
79.74
74.37
68.95
MAG
3.856
3.845
3.799
3.749
3.693
3.623
3.545
3.455
3.355
3.234
3.112
2.996
2.887
2.776
2.682
2.588
2.497
2.403
2.324
2.235
2.133
2.055
1.980
1.898
1.838
1.784
1.729
1.671
1.619
1.560
1.510
1.468
1.425
1.388
1.353
1.325
1.307
S
21
ANG
177.97
169.36
158.95
148.84
138.84
128.88
119.01
109.14
99.47
89.95
80.68
71.83
63.54
55.15
46.82
38.64
30.74
22.57
14.65
6.79
-1.00
-8.49
-15.66
-22.03
-29.29
-36.37
-43.52
-50.70
-57.89
-64.75
-71.71
-78.73
-85.44
-91.76
-98.43
-105.03
-111.50
MAG
0.002
0.010
0.020
0.029
0.038
0.046
0.054
0.060
0.066
0.070
0.074
0.077
0.079
0.081
0.082
0.083
0.083
0.083
0.084
0.084
0.083
0.083
0.083
0.083
0.083
0.083
0.084
0.085
0.086
0.088
0.090
0.091
0.093
0.094
0.097
0.100
0.103
S
12
ANG
85.09
82.02
74.19
66.92
59.46
52.14
45.23
38.23
31.47
24.96
18.97
13.18
7.81
2.63
-2.23
-6.93
-11.25
-15.39
-19.45
-23.41
-27.03
-30.53
-33.73
-36.77
-39.73
-42.65
-45.69
-48.97
-52.39
-55.97
-59.88
-63.97
-67.78
-71.67
-75.57
-79.66
-83.80
MAG
0.664
0.660
0.653
0.645
0.635
0.623
0.609
0.593
0.576
0.557
0.538
0.519
0.504
0.493
0.486
0.482
0.483
0.485
0.489
0.493
0.497
0.503
0.510
0.522
0.536
0.554
0.573
0.592
0.610
0.622
0.633
0.641
0.649
0.658
0.669
0.683
0.700
S
22
ANG
-1.46
-7.51
-15.03
-22.39
-29.74
-37.08
-44.41
-51.88
-59.36
-67.04
-74.69
-82.59
-90.60
-98.82
-107.02
-115.15
-123.24
-131.18
-139.19
-147.05
-155.06
-162.73
-170.38
-177.80
175.18
168.69
162.62
156.70
151.32
146.02
140.71
135.66
130.49
125.48
120.97
116.55
112.50
K
MAG
1
(dB)
-0.031
0.060
0.141
0.179
0.222
0.262
0.300
0.355
0.408
0.480
0.552
0.621
0.684
0.731
0.775
0.814
0.846
0.905
0.931
0.989
1.075
1.135
1.188
1.230
1.231
1.221
1.195
1.186
1.182
1.203
1.210
1.248
1.254
1.255
1.219
1.154
1.063
32.851
25.849
22.786
21.115
19.876
18.963
18.172
17.603
17.061
16.646
16.238
15.901
15.628
15.349
15.146
14.939
14.783
14.617
14.420
14.250
12.433
11.706
11.152
10.699
10.555
10.487
10.463
10.324
10.169
9.767
9.478
9.081
8.820
8.655
8.622
8.841
9.496
(
K
±
K
2
- 1
).
When K
≤
1, MAG is undefined and MSG values are used. MSG =
2
2
2
|S
21
|
, K = 1 + |
∆
| - |S
11
| - |S
22
|
,
∆
= S
11
S
22
- S
21
S
12
|S
12
|
2 |S
12
S
21
|
MAG = Maximum Available gain
MSG = Maximum Stable Gain
NE71383B
TYPICAL SCATTERING PARAMETERS
(T
A
= 25°C)
.8
.6
.4
3
.2
4
5
10
20
0
.2
.4
.6
.8
1
1.5
2
3
4 5
1
1.5
2
90˚
135˚
45˚
S
21
S
11
S
12
.025
.050
.075
180˚
0˚
S
22
-.2
-3
-.4
-2
-.6
-.8
-1
-1.5
-20
-10
-5
-4
1.000
2.000
225˚
3.000
315˚
270˚
V
D
= 4 V, I
DS
= 30 mA
FREQUENCY
(GHz)
0.10
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00
15.50
16.00
16.50
17.00
17.50
18.00
MAG
1.000
0.996
0.987
0.974
0.958
0.935
0.911
0.882
0.852
0.814
0.775
0.745
0.724
0.706
0.694
0.689
0.688
0.683
0.679
0.679
0.679
0.681
0.685
0.695
0.707
0.715
0.723
0.720
0.719
0.716
0.707
0.697
0.697
0.706
0.711
0.706
0.710
S
11
ANG
-2.28
-11.29
-22.92
-34.10
-45.19
-57.01
-69.44
-81.79
-93.85
-106.29
-119.11
-131.62
-143.56
-155.30
-166.88
-178.03
171.13
160.57
151.06
142.40
134.32
126.52
119.38
113.23
107.53
102.29
96.42
90.80
86.16
82.50
78.94
74.87
70.94
68.62
66.93
64.06
60.15
MAG
3.808
3.804
3.781
3.746
3.722
3.693
3.645
3.567
3.481
3.364
3.240
3.113
2.992
2.860
2.735
2.609
2.486
2.356
2.221
2.093
1.963
1.864
1.763
1.667
1.584
1.510
1.445
1.371
1.296
1.226
1.168
1.127
1.087
1.049
1.026
1.017
1.020
S
21
ANG
177.83
169.37
158.72
148.29
138.01
127.43
116.64
105.90
95.44
84.79
74.20
64.08
54.70
45.24
35.61
26.25
16.98
7.58
-1.07
-9.33
-17.41
-25.44
-32.78
-39.42
-46.72
-54.01
-61.11
-68.56
-75.34
-81.59
-87.90
-94.19
-100.28
-105.05
-110.80
-116.96
-123.51
MAG
0.002
0.010
0.019
0.028
0.037
0.045
0.053
0.059
0.065
0.070
0.073
0.076
0.077
0.078
0.078
0.078
0.078
0.077
0.076
0.075
0.074
0.073
0.071
0.070
0.069
0.068
0.069
0.070
0.070
0.070
0.071
0.072
0.073
0.074
0.075
0.078
0.083
S
12
ANG
92.50
82.15
74.62
67.04
59.29
52.01
44.39
36.63
29.10
21.86
14.82
8.09
1.84
-4.10
-9.64
-14.94
-19.89
-24.71
-28.84
-32.87
-36.83
-40.71
-43.87
-46.77
-49.31
-51.91
-54.19
-56.99
-60.82
-64.39
-68.22
-71.51
-75.00
-78.24
-81.20
-84.63
-88.75
MAG
0.660
0.657
0.652
0.643
0.633
0.619
0.603
0.586
0.566
0.544
0.519
0.495
0.473
0.455
0.444
0.439
0.439
0.443
0.451
0.456
0.464
0.472
0.482
0.494
0.510
0.533
0.557
0.583
0.607
0.627
0.643
0.656
0.666
0.676
0.690
0.709
0.728
S
22
ANG
-1.60
-7.34
-14.61
-21.85
-29.16
-36.62
-44.16
-51.76
-59.54
-67.41
-75.62
-84.09
-92.51
-101.69
-110.69
-120.04
-129.02
-137.90
-146.73
-155.17
-163.64
-171.91
-179.93
172.40
165.44
158.79
152.66
147.12
141.60
136.93
132.24
127.86
123.95
120.28
116.91
113.83
110.79
-0.045
0.077
0.130
0.182
0.230
0.286
0.332
0.397
0.458
0.543
0.640
0.715
0.785
0.852
0.912
0.952
0.980
1.040
1.103
1.169
1.243
1.299
1.373
1.397
1.391
1.377
1.299
1.285
1.291
1.319
1.359
1.393
1.386
1.327
1.250
1.140
0.944
K
MAG
1
(dB)
32.797
25.802
22.989
21.264
20.026
19.142
18.374
17.815
17.288
16.818
16.472
16.124
15.895
15.643
15.449
15.244
15.034
13.631
12.703
11.970
11.270
10.792
10.307
10.017
9.882
9.803
9.929
9.712
9.436
9.051
8.582
8.211
8.028
8.094
8.352
8.880
10.895
Notes:
1.Gain Calculations:
MAG =
|S
21
|
|S
12
|
(
K
±
K
2
- 1
).
When K
≤
1, MAG is undefined and MSG values are used. MSG =
2
2
2
|S
21
|
, K = 1 + |
∆
| - |S
11
| - |S
22
|
,
∆
= S
11
S
22
- S
21
S
12
|S
12
|
2 |S
12
S
21
|
MAG = Maximum Available gain
MSG = Maximum Stable Gain
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