ALPHA AFM04P3-213, AFM04P3-212 Datasheet

Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com 1

Specifications subject to change without notice. 6/99A

Low Noise/Medium Power
GaAs MESFET Chips

Features

■ Low Noise Figure, 0.6 dB @ 4 GHz

■ 20 dBm Output Power @ 18 GHz

■ High Associated Gain, 13 dB @ 4 GHz

■ High Power Added Efficiency, 25%

■ Broadband Operation, DC–26 GHz

■ Available in Tape and Reel Packaging

Description

The AFM04P3-212, 213 are high performance power
GaAs MESFET chips having a gate length of 0.25 µm and
a total gate periphery of 400 µm. These devices have
excellent gain and power performance through 26 GHz,
making them suitable for a wide range of commercial and
military applications in oscillator and amplifier circuits.They
also have e xcellent noise performance and can be used
in the first and second stage of low noise amplifier design.
The AFM04P3 employs Ti/Pd/Au gate metallization and
surface passivation to ensure a rugged, reliable part.

AFM04P3-212, AFM04P3-213

Parameter Test Conditions Min. Typ. Max. Unit

Saturated Drain Current (I

DSS

) 90.0 140.0 190.0 mA

Transconductance (gm)

VDS= 2 V, VGS= 0 V

60.0 80.0 mS

Pinch-Off Voltage (VP)V

DS

= 5 V, IDS= 1 mA 1.0 3.0 5.0 -V

Gate to Drain Breakdown IGD= -400 µA 8.0 12.0 -V
Voltage (V

bgd

)
Noise Figure (NF) 0.6 dB
Associated Gain (GA)

VDS= 2 V, IDS= 25 mA, F = 4 GHz

13.8 dB

Output Power at 1 dB 20.0 dBm
Compression (P

1 dB

)

Gain at 1 dB Compression (G

1 dB

)

VDS= 5 V, IDS= 70 mA, F = 18 GHz

9.0 dB

Power Added Efficiency (ηadd) 25.0 %

Electrical Specifications at 25°C

Source

Gate

Source

Drain

Drain

Source Gate

Source

212

213

Characteristic Value

Drain to Source Voltage (VDS) 6 V
Gate to Source Voltage (VGS) -4 V
Drain Current (IDS) I

DSS

Gate Current (IGS) 1 mA
Total Power Dissipation (PT) 700 mW
Storage Temperature (TST) -65 to +150°C
Channel Temperature (TCH) 175°C

Absolute Maximum Ratings

2 Alpha Industries, Inc.[781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com

Specifications subject to change without notice. 6/99A

Low Noise/Medium Power GaAs MESFET Chips AFM04P3-212, AFM04P3-213

I-V

0

30

60

90

120

150

01 3254

-0.5 V

-1.0 V

-1.5 V

-2.0 V

-2.5 V

VDS (V)

l

DS

(mA)

VGS = 0 V

Typical Performance Data

Typical S-Parameters (V

DS

= 5 V, IDS= 75 mA)

Freq. NF

MIN

ΓΓ

opt

R

N

(GHz) (dB) Mag. Ang. (Normalized) GA(dB)

2 0.32 0.840 22.0 0.32 15.81
3 0.43 0.816 39.9 0.30 14.75
4 0.54 0.760 55.1 0.28 13.85
5 0.62 0.707 71.0 0.25 13.04
6 0.71 0.658 87.6 0.20 12.31
7 0.81 0.613 104.8 0.16 11.66
8 0.90 0.573 122.5 0.11 11.09

9 1.00 0.538 140.5 0.08 10.58
10 1.09 0.509 158.8 0.06 10.13
11 1.19 0.488 177.3 0.05 9.74
12 1.28 0.473 -164.2 0.06 9.39

Typical Noise Parameters
(V

DS

= 2 V, IDS= 25 mA)

Freq.

S

11

S

21

S

12

S

22

MAG/

(GHz) Mag. Ang. Mag. Ang. Mag. Ang. Mag. Ang. MSG (dB)

2 0.889 -52.589 5.318 130.730 0.025 60.396 0.603 -38.675 23.226
3 0.846 -73.729 4.630 107.339 0.032 43.999 0.547 -55.205 21.552
4 0.839 -93.128 4.202 94.408 0.035 47.172 0.442 -58.792 20.739
5 0.845 -114.624 4.052 72.773 0.039 33.811 0.442 -71.114 20.126
6 0.840 -138.378 3.858 53.962 0.043 26.985 0.433 -87.725 19.554
7 0.721 -161.239 3.642 36.964 0.046 24.957 0.459 -102.826 18.966
8 0.708 176.151 3.365 21.074 0.051 26.565 0.444 -115.757 18.196

9 0.726 155.765 3.020 8.127 0.052 25.272 0.367 -124.557 15.515
10 0.662 141.259 2.841 -7.015 0.061 22.692 0.379 -139.923 13.767
11 0.627 127.290 2.606 -22.373 0.067 17.602 0.364 -155.126 12.218
12 0.647 104.509 2.340 -40.840 0.078 7.397 0.313 -168.618 11.224
13 0.664 91.536 2.295 -54.578 0.098 3.156 0.353 160.641 12.045
14 0.757 76.937 2.271 -73.712 0.125 -14.059 0.464 138.233 12.603
15 0.854 59.140 2.151 -91.255 0.138 -29.083 0.480 121.701 11.912
16 0.877 41.254 2.030 -108.970 0.156 -44.222 0.477 102.016 11.136
17 0.817 22.517 1.775 -124.675 0.153 -58.620 0.510 74.410 10.633
18 0.854 8.149 1.516 -138.209 0.148 -66.477 0.532 52.097 10.094
19 0.829 0.211 1.387 -150.773 0.159 -79.718 0.667 43.603 9.418
20 0.808 -6.381 1.295 -163.174 0.158 -90.627 0.750 36.702 9.137
21 0.868 -25.384 1.311 177.989 0.177 -106.327 0.642 24.887 8.692
22 0.842 -44.086 1.290 158.446 0.190 -124.276 0.654 -3.077 8.319
23 0.892 -65.418 1.195 137.339 0.186 -140.906 0.721 -31.972 8.090
24 1.003 -85.660 1.138 120.757 0.182 -154.898 0.755 -40.865 7.956
25 0.913 -102.209 1.071 101.362 0.183 -171.299 0.714 -57.178 7.671
26 0.810 -125.908 0.925 76.234 0.152 167.541 0.630 -89.282 7.853