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 [email protected] • 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 [email protected] • www.alphaind.com Specifications subject to change without notice. 6/99A