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 • 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
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
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.”
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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.
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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.
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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)
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