FEATURES
LOW NOISE FIGURE:
NF = 1.4 dB TYP at f = at 12 GHz
HIGH ASSOCIATED GAIN:
G
A
=
10 dB TYP at f = 12 GHz
GATE WIDTH: W
G
= 280 m
GATE LENGTH: L
G
= 0.3 m
NE67400
NE67483B
NEC's L TO Ku BAND LOW NOISE
AMPLIFIER N-CHANNEL GaAS MESFET
DESCRIPTION
NEC's NE674 is a L to Ku Band low noise GaAs MESFET. This
device features a low noise figure with high associated gain,
employing a recessed 0.3 micron gate and triple epitaxial
technology. The active area of the chip is covered with S
i
D
2
and S
i3
N
4
for scratch protection and surface stability. This
device is suitable for both amplifier and oscillator applications.
This device is housed in a solder sealed hermetic, metal
ceramic package for high reliability in space applications.
PART NUMBER
NE67400
PACKAGE OUTLINE
NE67483B
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
NF
Noise Figure at V
DS
= 3 V, I
D
= 10 mA, f = 4 GHz
dB
0.6
f = 12 GHz
dB
1.4
1.6
G
A
Associated Gain at V
DS
= 3 V I
D
= 10 mA, f = 4 GHz
dB
14.0
f = 12 GHz
dB
8.5
10.0
P
1dB
Output Power at 1 dB Gain Compression Point, f = 12 GHz,
V
DS
= 3 V, I
DS
= 30 mA
dBm
14.5
I
DSS
Saturated Drain Current at V
DS
= 3 V, V
GS
= 0 V
mA
20
40
120
V
GS(OFF)
Gate to Source Cut Off Voltage at V
DS
= 3 V, I
D
= 100 A
V
-0.5
-1.1
-3.5
g
m
Transconductance at V
DS
= 3 V, I
D
= 10 mA
mS
20
50
100
I
GSO
Gate to Source Leakage Current at V
GS
= -5 V
A
1.0
10
R
TH (CH-C)
Thermal Resistance (Channel-to-Case) NE67400
C/W
190
NE67483B
C/W
450
ELECTRICAL CHARACTERISTICS
(T
A
= 25C)
California Eastern Laboratories
NOISE FIGURE, ASSOCIATED GAIN
vs. FREQUENCY
Noise Figure, NF (dB)
Frequency, f (GHz)
Associated Gain, G
A
, (dB)
2.0
3.0
1.0
0
12
16
20
24
8
4
1
2
4
6
8 10
14
20
30
V
DS
= 3 V
I
D
= 10 mA
G
A
NF
FREQ.
NF
OPT
G
A
OPT
(GHz)
(dB)
(dB)
MAG
ANG
Rn/50
2
0.55
17.0
0.81
37
0.57
3
0.58
15.2
0.75
53
0.51
4
0.60
14.0
0.70
69
0.44
5
0.68
13.2
0.67
83
0.37
6
0.76
12.6
0.65
97
0.31
7
0.85
12.0
0.64
111
0.25
8
0.93
11.5
0.64
123
0.19
9
1.03
11.0
0.64
136
0.14
10
1.15
10.7
0.64
148
0.10
11
1.26
10.3
0.64
161
0.06
12
1.40
10.0
0.63
173
0.05
13
1.55
9.6
0.62
-173
0.05
14
1.70
9.2
0.60
-159
0.08
15
1.84
9.0
0.57
-145
0.15
16
2.04
8.6
0.53
-129
0.23
17
2.18
8.3
0.46
-113
0.34
18
2.35
8.0
0.38
-95
0.44
SYMBOLS
PARAMETERS
UNITS
RATINGS
V
DS
Drain to Source Voltage
V
5.0
V
GD
Gate to Drain Voltage
V
6.0
I
DS
Drain Current
mA
I
DSS
T
CH
Channel Temperature
C
175
T
STG
Storage Temperature
C
-65 to +175
P
T
Total Power Dissipation
NE67483B
mW
270
NE67400
mW
400
TYPICAL PERFORMANCE CURVES
(T
A
= 25C)
Ambient Temperature, T
A
(C)
TOTAL POWER DISSIPATION vs.
AMBIENT TEMPERATURE
NE67400, NE67483B
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25C)
TYPICAL NOISE PARAMETERS
(T
A
= 25C)
V
DS
= 3 V, I
DS
= 10 mA (NE67483B)
DRAIN CURRENT vs.
DRAIN TO SOURCE VOLTAGE
Drain Current, I
DS
(mA)
Note:
1. Operation in excess of any one of these conditions may result in
permanent damage.
Drain to Source Voltage, V
DS
(V)
Total Power Dissipation, P
T
(mW)
SYMBOLS
PARAMETERS
UNITS MIN
TYP MAX
V
DS
Drain to Source Voltage
V
3
4
I
D
Drain Current
mA
10
30
P
IN
Input Power
dBm
15
RECOMMENDED OPERATING
CONDITIONS
(T
A
= 25C)
300
200
400
100
0
50
100
150
200
NE67483B
NE67400
40
30
20
10
0
2
1
4
5
3
V
GS
= 0 V
-0.2 V
-0.4 V
-0.6 V
TYPICAL COMMON SOURCE SCATTERING PARAMETERS
(T
A
= 25C)
NE67400, NE67483B
TYPICAL PERFORMANCE CURVES
(T
A
= 25C)
Gate to Source Voltage, V
GS
(V)
DRAIN CURRENT vs.
GATE TO SOURCE VOLTAGE
Drain Current, I
DS
(mA)
NE67483B
S
11
1.0
0.5
0
5
4
3
2
1
-0.5
-1.0
-2.0
2.0
0
V
DS
= 3 V, I
D
= 10 mA
Start 500 MHz,
Stop 18 GHZ,
Step 500 MHz
Marker
1 : 2 GHz
2 : 4 GHz
3 : 8 GHz
4 : 12 GHz
5 : 16 GHz
S
22
1.0
0.5
0
5
4
3
2
1
-0.5
-1.0
-2.0
2.0
0
40
50
30
20
10
0
-1.0
-2.0
0
V
DS
= 3 V
FREQUENCY
S
11
S
21
S
12
S
22
K
MAG
1
MHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
(dB)
NE67400, NE67483B
Note:
1. Gain Calculations:
NE67483B
V
DS
= 3 V, I
DS
= 10 mA
MAG = Maximum Available Gain
MSG = Maximum Stable Gain
500
0.992
-11.4
3.091
169.6
0.011
81.8
0.729
-6.9
0.13
31.25
1000
0.961
-21.7
3.045
159.3
0.022
74.6
0.721
-14.0
0.32
23.98
1500
0.985
-32.1
3.029
150.2
0.032
67.1
0.714
-21.0
0.12
27.96
2000
0.960
-42.5
2.941
141.1
0.041
59.8
0.709
-27.6
0.21
23.47
2500
0.930
-53.1
2.914
130.6
0.049
53.3
0.696
-34.1
0.30
20.85
3000
0.934
-61.7
2.795
123.1
0.056
46.5
0.687
-40.4
0.27
20.66
3500
0.885
-70.6
2.662
113.5
0.062
39.6
0.672
-47.1
0.44
17.75
4000
0.855
-81.8
2.568
104.4
0.068
34.7
0.657
-53.6
0.48
16.36
4500
0.876
-89.4
2.537
95.5
0.071
29.3
0.651
-59.9
0.42
16.80
5000
0.830
-97.3
2.436
88.7
0.076
23.4
0.637
-66.3
0.54
15.07
5500
0.818
-106.0
2.333
80.9
0.077
17.6
0.630
-72.4
0.58
14.37
6000
0.817
-111.4
2.251
74.2
0.080
14.0
0.623
-78.6
0.58
13.97
6500
0.786
-120.2
2.132
66.2
0.080
9.3
0.613
-84.7
0.70
12.80
7000
0.781
-126.4
2.100
59.2
0.081
5.9
0.619
-90.5
0.70
12.63
7500
0.772
-133.0
2.028
52.6
0.081
1.6
0.616
-96.0
0.74
12.14
8000
0.763
-140.2
1.988
44.9
0.079
-2.1
0.614
-101.6
0.78
11.82
8500
0.752
-145.6
1.929
39.3
0.082
-4.4
0.619
-106.8
0.78
11.42
9000
0.734
-152.9
1.854
31.6
0.080
-7.0
0.621
-112.3
0.87
10.84
9500
0.716
-158.2
1.815
25.8
0.079
-9.8
0.620
-117.7
0.95
10.41
10000
0.695
-164.0
1.758
20.0
0.081
-11.3
0.618
-122.7
1.01
12.83
10500
0.685
-169.5
1.714
14.1
0.079
-14.2
0.628
-127.7
1.06
11.85
11000
0.672
-174.5
1.666
7.7
0.079
-16.6
0.624
-133.5
1.13
11.00
11500
0.661
179.4
1.657
1.2
0.080
-18.3
0.624
-138.4
1.15
10.83
12000
0.649
174.4
1.624
-4.5
0.080
-19.6
0.633
-143.9
1.16
10.63
12500
0.633
169.1
1.597
-11.4
0.080
-21.6
0.629
-149.3
1.24
10.04
13000
0.614
162.3
1.577
-17.3
0.082
-24.0
0.638
-153.9
1.24
9.88
13500
0.594
156.9
1.542
-24.1
0.082
-24.4
0.646
-159.1
1.28
9.53
14000
0.567
151.1
1.500
-30.0
0.085
-27.7
0.651
-164.0
1.34
8.99
14500
0.543
143.5
1.483
-36.1
0.088
-28.7
0.662
-168.7
1.31
8.95
15000
0.536
138.2
1.462
-41.9
0.089
-31.6
0.668
-174.0
1.30
8.87
15500
0.512
131.0
1.455
-47.9
0.094
-34.7
0.670
-178.5
1.28
8.74
16000
0.489
123.7
1.451
-54.1
0.097
-37.3
0.679
176.3
1.24
8.79
16500
0.465
116.9
1.433
-60.5
0.100
-40.8
0.681
172.0
1.27
8.45
17000
0.451
108.3
1.441
-67.5
0.102
-44.1
0.688
167.4
1.22
8.67
17500
0.418
100.7
1.408
-74.6
0.106
-48.5
0.686
162.6
1.28
8.05
18000
0.387
91.9
1.404
-81.6
0.115
-52.0
0.690
158.2
1.22
8.06
MAG =
|S
21
|
|S
12
|
K - 1
).
2
(
K
= S
11
S
22
- S
21
S
12
When K
1, MAG is undefined and MSG values are used. MSG =
|S
21
|
|S
12
|
, K = 1 + | | - |S
11
| - |S
22
|
2
2
2
2 |S
12
S
21
|
,
FREQUENCY
S
11
S
21
S
12
S
22
K
MAG
1
MHz
MAG
ANG
MAG
ANG
MAG
ANG
MAG
ANG
(dB)
NE67400, NE67483B
Note:
1. Gain Calculations:
NE67483B
V
DS
= 3 V, I
DS
= 20 mA
MAG = Maximum Available Gain
MSG = Maximum Stable Gain
500
0.999
-10.8
3.834
169.5
0.010
82.5
0.685
-6.8
0.00
00.00
1000
0.998
-21.9
3.746
160.0
0.020
73.6
0.680
-13.8
0.00
00.00
1500
0.996
-33.4
3.694
149.1
0.029
66.4
0.667
-20.9
0.08
34.72
2000
0.987
-43.8
3.630
140.2
0.037
59.9
0.663
-27.4
0.10
29.65
2500
0.968
-54.5
3.552
130.3
0.045
54.1
0.651
-33.8
0.16
25.48
3000
0.948
-63.8
3.417
121.7
0.052
47.6
0.638
-40.2
0.23
22.86
3500
0.923
-73.4
3.265
112.5
0.056
43.2
0.627
-46.7
0.28
20.76
4000
0.890
-84.3
3.107
103.1
0.062
36.6
0.612
-52.9
0.37
18.70
4500
0.885
-93.2
3.067
93.9
0.065
30.5
0.605
-59.3
0.38
18.37
5000
0.860
-100.9
2.929
87.3
0.067
26.0
0.592
-65.4
0.44
17.05
5500
0.840
-109.0
2.804
79.6
0.070
21.3
0.586
-71.3
0.49
16.09
6000
0.828
-115.7
2.694
72.9
0.071
18.9
0.580
-77.6
0.51
15.42
6500
0.811
-123.8
2.538
64.7
0.073
13.5
0.572
-83.4
0.59
14.45
7000
0.797
-130.5
2.500
57.9
0.073
10.6
0.578
-88.9
0.61
14.11
7500
0.776
-137.6
2.399
51.1
0.073
8.4
0.575
-94.2
0.68
13.34
8000
0.780
-144.3
2.349
43.6
0.074
5.4
0.575
-99.8
0.67
13.24
8500
0.754
-150.5
2.271
38.0
0.075
2.8
0.581
-104.8
0.73
12.56
9000
0.738
-157.3
2.175
29.9
0.075
0.5
0.584
-110.1
0.80
11.97
9500
0.720
-162.7
2.129
24.7
0.077
-1.9
0.582
-115.2
0.83
11.53
10000
0.693
-169.1
2.050
18.5
0.078
-3.4
0.585
-120.0
0.92
10.89
10500
0.677
-174.1
1.999
12.7
0.077
-5.5
0.591
-125.0
0.99
10.54
11000
0.661
-179.3
1.943
6.6
0.078
-6.6
0.593
-131.1
1.02
13.04
11500
0.649
174.6
1.923
0.1
0.080
-8.0
0.593
-135.6
1.03
12.69
12000
0.627
169.6
1.884
-5.8
0.081
-10.2
0.600
-141.0
1.08
11.95
12500
0.608
163.6
1.850
-12.6
0.083
-12.1
0.603
-146.5
1.12
11.43
13000
0.594
157.6
1.820
-18.5
0.086
-14.1
0.615
-150.9
1.09
11.48
13500
0.563
151.3
1.778
-25.2
0.087
-15.9
0.621
-156.1
1.15
10.74
14000
0.536
145.7
1.730
-31.3
0.092
-19.1
0.632
-160.9
1.15
10.42
14500
0.513
138.3
1.708
-37.2
0.095
-21.2
0.641
-165.7
1.14
10.29
15000
0.499
131.9
1.678
-43.1
0.098
-24.1
0.648
-170.8
1.12
10.24
15500
0.467
125.3
1.665
-49.4
0.103
-27.5
0.657
-175.2
1.11
10.10
16000
0.456
117.8
1.654
-55.4
0.105
-31.5
0.666
179.2
1.07
10.30
16500
0.426
109.8
1.636
-61.9
0.111
-34.6
0.668
175.0
1.08
10.01
17000
0.401
101.8
1.631
-68.8
0.114
-39.1
0.683
170.1
1.04
10.34
17500
0.373
92.7
1.599
-76.1
0.118
-43.4
0.679
165.3
1.08
9.58
18000
0.344
82.3
1.595
-83.0
0.125
-49.5
0.691
160.4
1.03
10.05
MAG =
|S
21
|
|S
12
|
K - 1
).
2
(
K
= S
11
S
22
- S
21
S
12
When K
1, MAG is undefined and MSG values are used. MSG =
|S
21
|
|S
12
|
, K = 1 + | | - |S
11
| - |S
22
|
2
2
2
2 |S
12
S
21
|
,
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