ALPHA AFM04P3-000

Low Noise/Medium Power
GaAs MESFET Chip
AFM04P3-000
Features
Chip Layout
■ 21 dBm Output Power @ 18 GHz
■ High Associated Gain, 9 dB @ 18 GHz
■ High Power Added Efficiency, 25%
■ Broadband Operation, DC–26 GHz
■ 0.25 µm Ti/Pd/Au Gates
■ Passivated Surface
Description
The AFM04P3-000 is a high performance power GaAs
MESFET chip having a gate length of 0.25 µm and a total
gate periphery of 400 µm. The device has excellent gain
and power performance through 26 GHz, making it
suitable for a wide range of commercial and military
applications in oscillator and amplifier circuits. The device
employs Ti/Pd/Au gate metallization and surface
passivation to ensure a rugged, reliable part.
Absolute Maximum Ratings
Characteristic
Value
Drain to Source Voltage (VDS)
6V
Gate to Source Voltage (VGS)
-4 V
Drain Current (IDS)
IDSS
Gate Current (IGS)
1 mA
Total Power Dissipation (PT)
700 mW
Storage Temperature (TST)
-65 to +150°C
Channel Temperature (TCH)
175°C
Electrical Specifications at 25°C
Parameter
Min.
Typ.
Max.
Unit
90.0
140.0
190.0
mA
VDS = 2 V, VGS = 0 V
60.0
80.0
Pinch-off Voltage (VP)
VDS = 5 V, IDS = 1 mA
1.0
3.0
Gate to Drain
Breakdown Voltage (Vbgd)
IGD = -400 µA
8.0
12.0
-V
0.6
dB
Saturated Drain Current (IDSS)
Transconductance (gm)
Noise Figure (NF)
Associated Gain (GA)
Output Power at 1 dB
Compression (P1 dB)
Gain at 1 dB Compression (G1 dB)
Power Added Efficiency (ηadd)
Thermal Resistance (ΘJC)
Test Conditions
VDS = 2 V, IDS = 25 mA, F = 4 GHz
VDS = 5 V, IDS = 70 mA, F = 18 GHz
TBASE = 25°C
mS
5.0
13.8
dB
21.0
dBm
9.0
dB
25.0
%
250.0
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
-V
°C/W
1
Low Noise/Medium Power GaAs MESFET Chip
AFM04P3-000
150
Total Power Dissipation PT (W)
Typical Performance Data
VGS = 0 V
120
lDS (mA)
-0.5 V
90
-1.0 V
60
-1.5 V
30
-2.0 V
-2.5 V
0
0
1
2
3
4
1.00
0.75
0.50
0.25
0
0
5
50
100
VDS (V)
150
200
TBASE (˚C)
Power Derating
I-V
Typical S-Parameters (VDS = 5 V, IDS = 70 mA)
S11
S21
S12
S22
Freq.
(GHz)
Mag.
Ang.
Mag.
Ang.
Mag.
Ang.
Mag.
Ang.
k
MAG
(dB)
2
0.969
-37.191
5.040
153.579
0.029
68.605
0.550
-18.296
0.100
22.364
3
0.958
-54.069
4.740
141.521
0.041
59.064
0.533
-26.529
0.150
20.613
4
0.935
-69.318
4.398
130.518
0.051
50.587
0.514
-33.959
0.200
19.278
5
0.913
-82.889
4.050
120.568
0.058
43.171
0.497
-40.630
0.250
18.247
6
0.893
-94.881
3.719
111.573
0.064
36.722
0.482
-46.663
0.299
17.658
7
0.877
-105.468
3.415
103.398
0.068
31.107
0.471
-52.183
0.349
17.104
8
0.863
-114.843
31.420
95.911
0.071
26.196
0.462
-57.310
0.398
16.464
9
0.852
-123.189
2.898
88.991
0.073
21.873
0.456
-62.138
0.447
15.986
10
0.843
-130.670
2.683
82.540
0.074
18.042
0.453
-66.738
0.496
15.566
11
0.836
-137.422
2.492
67.477
0.075
14.624
0.452
-71.161
0.544
15.193
12
0.831
-143.563
2.322
70.736
0.076
11.558
0.453
-75.442
0.593
14.858
13
0.826
-149.188
2.171
65.267
0.076
8.796
0.455
-79.606
0.641
14.447
14
0.823
-154.374
2.036
60.027
0.076
6.302
0.459
-83.671
0.688
14.285
15
0.821
-159.187
1.914
54.985
0.065
4.047
0.464
-87.648
0.735
14.037
16
0.819
-163.679
1.805
50.114
0.074
2.007
0.470
-91.546
0.781
13.811
17
0.818
-167.895
1.605
45.393
0.074
0.167
0.477
-95.372
0.827
13.063
18
0.817
171.872
1.615
40.805
0.073
-1.486
0.484
-99.129
0.872
13.412
19
0.817
-175.369
1.532
36.335
0.072
-2.961
0.492
-102.821
0.916
13.235
20
0.817
-179.221
1.456
31.973
0.071
-4.266
0.501
-106.451
0.959
13.071
21
0.818
177.359
1.386
27.760
0.060
-5.405
0.510
-110.021
1.001
12.753
22
0.819
174.083
1.321
23.535
0.069
-6.382
0.520
-113.533
1.041
11.534
23
0.820
170.936
1.261
19.445
0.068
-7.201
0.530
-116.989
1.069
10.915
24
0.821
167.905
1.205
15.343
0.067
-7.863
0.540
-120.389
1.116
10.431
25
0.822
164.969
1.512
11.498
0.066
-8.371
0.551
-123.737
1.150
10.024
26
0.824
162.148
1.103
6.633
0.065
-8.728
0.561
-127.031
1.181
9.671
S-Parameters include the effects of two 0.8 mil diameter bond wires, each 10 mil long, to each of the gate and drain terminals.
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