2 – 16 GHz General Purpose Gallium Arsenide FET Technical Data ATF-26884 Features • High Output Power: 18.0␣ dBm Typical P 1 dB at 12␣ GHz • High Gain: 9.0 dB Typical GSS at 12␣ GHz housed in a cost effective microstrip package. This device is designed for use in oscillator applications and general purpose amplifier applications in the 2-16␣ GHz frequency range. 84 Plastic Package • Low Cost Plastic Package • Tape-and-Reel Packaging Option Available[1] Description The ATF-26884 is a high performance gallium arsenide Schottkybarrier-gate field effect transistor This GaAs FET device has a nominal 0.3 micron gate length with a total gate periphery of 250␣ microns. Proven gold based metallization systems and nitride passivation assure a rugged, reliable device. Electrical Specifications, TA = 25°C Symbol Parameters and Test Conditions Units Min. 7.0 GSS Tuned Small Signal Gain: VDS = 5 V, IDS = 30 mA f = 12.0 GHz dB NFO GA Optimum Noise Figure: VDS = 3 V, IDS = 10 mA Gain @ NFO: VDS = 3 V, IDS = 10 mA f = 12.0 GHz f = 12.0 GHz dB dB P1 dB Power Output @ 1 dB Gain Compression: VDS = 5 V, IDS = 30 mA f = 12.0 GHz dBm gm Transconductance: VDS = 3 V, VGS = 0 V IDSS Saturated Drain Current: VDS = 3 V, VGS = 0 V VP Pinch-off Voltage: VDS = 3 V, IDS = 1 mA Typ. Max. 9.0 2.2 6.0 15.0 18.0 mmho 15 35 mA 30 50 90 V -3.5 -1.5 -0.5 Note: 1. Refer to PACKAGING section “Tape-and-Reel Packaging for Surface Mount Semiconductors.” 5-71 5965-8703E ATF-26884 Absolute Maximum Ratings Symbol VDS VGS VGD IDS PT TCH TSTG Parameter Drain-Source Voltage Gate-Source Voltage Gate-Drain Voltage Drain Current Power Dissipation [2,3] Channel Temperature Storage Temperature Notes: 1. Permanent damage may occur if any of these limits are exceeded. 2. TCASE TEMPERATURE = 25°C. 3. Derate at 3.3 mW/°C for TCASE > 92.5°C. 4. The small spot size of this technique results in a higher, though more accurate determination of θjc than do alternate methods. See MEASUREMENTS section for more information. Absolute Maximum[1] +7 -4 -8 IDSS 275 175 -65 to +150 Units V V V mA mW °C °C θjc = 300°C/W; TCH = 150°C 1␣ µm Spot Size[4] Thermal Resistance: Liquid Crystal Measurement: Part Number Ordering Information Part Number Devices Per Reel Reel Size ATF-26884-TR1 ATF-26884-STR 1000 10 7" strip 25 25 20 20 15 MSG 10 MAG GAIN (dB) GAIN (dB) ATF-26884 Typical Performance, TA = 25°C MSG MAG 15 MSG MAG MSG 10 |S21|2 5 0 2.0 |S21|2 4.0 5 6.0 8.0 10.0 12.0 16.0 FREQUENCY (GHz) Figure 1. Insertion Power Gain, Maximum Available Gain and Maximum Stable Gain vs. Frequency. VDS = 3 V, IDS = 10 mA. 0 2.0 4.0 6.0 8.0 10.0 12.0 16.0 FREQUENCY (GHz) Figure 2. Insertion Power Gain, Maximum Available Gain and Maximum Stable Gain vs. Frequency. VDS = 5 V, IDS = 30 mA. 5-72 Typical Scattering Parameters, Common Emitter, Z O = 50 Ω, TA = 25°C, VDS = 3 V, IDS␣ =␣ 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 S11 Mag. .96 .91 .86 .79 .73 .67 .62 .57 .53 .52 .49 .52 .56 .60 .65 .68 .69 Ang. -36 -56 -78 -97 -113 -127 -144 -168 168 147 124 103 80 65 52 40 30 dB 6.9 7.4 7.6 7.2 6.8 6.4 6.4 6.2 5.8 5.2 4.9 4.6 4.0 3.3 2.9 2.3 1.3 S21 Mag. 2.21 2.35 2.39 2.30 2.20 2.10 2.08 2.03 1.96 1.81 1.76 1.70 1.58 1.46 1.40 1.30 1.16 Ang. 142 123 103 86 71 56 41 23 6 -10 -22 -36 -54 -72 -83 -99 -112 dB -26.6 -23.0 -20.6 -19.5 -18.9 -18.4 -17.9 -17.5 -17.3 -17.2 -17.1 -16.7 -16.3 -16.3 -16.3 -16.0 -15.9 S12 Mag. .047 .071 .093 .106 .114 .120 .128 .134 .136 .138 .140 .146 .153 .153 .153 .158 .159 S22 Ang. 64 50 36 25 16 9 1 -8 -16 -22 -26 -31 -37 -42 -48 -56 -72 Mag. .81 .77 .70 .66 .62 .61 .58 .54 .47 .41 .39 .37 .35 .35 .37 .41 .47 Ang. -25 -38 -50 -61 -70 -78 -88 -101 -116 -133 -143 -154 -171 173 132 101 87 Typical Scattering Parameters, Common Emitter, Z O = 50 Ω, TA = 25°C, VDS = 5 V, IDS␣ =␣ 30 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 S11 Mag. .94 .87 .79 .71 .64 .57 .52 .48 .48 .48 .49 .53 .57 .62 .70 .75 .74 Ang. -41 -65 -89 -109 -126 -142 -162 174 149 130 108 88 69 56 44 33 24 dB 9.2 9.5 9.3 8.7 8.1 7.5 7.2 6.9 6.5 5.9 5.6 5.2 4.7 4.1 3.7 3.0 2.3 S21 Mag. 2.88 2.97 2.93 2.73 2.54 2.38 2.30 2.21 2.11 1.97 1.91 1.82 1.71 1.60 1.53 1.41 1.30 Ang. 138 118 97 79 64 50 35 18 1 -14 -25 -39 -55 -75 -87 -103 -117 A model for this device is available in the DEVICE MODELS section. 5-73 dB -30.8 -27.3 -25.5 -24.9 -24.4 -24.0 -23.1 -21.9 -20.4 -19.7 -18.1 -16.2 -15.2 -14.8 -13.8 -12.9 -13.6 S12 Mag. .029 .043 .053 .057 .060 .063 .070 .080 .095 .104 .125 .155 .173 .182 .205 .226 .210 S22 Ang. 65 51 40 35 33 31 30 28 24 22 20 18 5 -1 -16 -28 -44 Mag. .84 .80 .74 .71 .69 .69 .69 .67 .63 .57 .55 .54 .52 .52 .52 .54 .63 Ang. -23 -34 -44 -53 -60 -67 -76 -87 -100 -114 -122 -132 -146 -165 165 135 114 84 Plastic Package Dimensions 0.51 (0.020) 4 SOURCE DRAIN 268 GATE 1 2 3 SOURCE 2.15 (0.085) 5° 0.20 ± 0.050 (0.008 ± 0.002) 1.52 ± 0.25 (0.060 ± 0.010) 0.51 (0.020) 5.46 ± 0.25 (0.215 ± 0.010) DIMENSIONS ARE IN MILLIMETERS (INCHES) 5-74