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AMMC-5024
Data Sheet
30 KHz - 40 GHz Traveling Wave Amplifier
Description AvagoTechnologies'AMMC-5024isabroadbandPHEMT GaAsMMICTWAdesignedformediumoutputpowerand highgainoverthefull30KHzto40GHzfrequency
range.Thedesignemploysa9-stage,cascade-connected FETstructuretoensureflatgainandpoweraswellasuniformgroupdelay.E-beamlithographyisusedtoproduce uniform gate lengths of 0.15 mm and MBE technology assuresprecisesemiconductorlayercontrol.Forimproved reliabilityandmoistureprotection,thedieispassivated attheactiveareas. Applications * Communicationsystems * Microwaveinstrumentation * Opticalsystems * Broadbandapplicationsrequiringflatgainandgroup delaywithexcellentinputandoutputportmatchesover the30KHzand40GHzfrequencyrange
Features * Widefrequencyrange:30KHz - 40GHz * Highgain:16dB * Gainflatness:0.75dB * Returnloss: Input:13dB,Output:13dB * Mediumpower:P-1dB = 22.5dBmat22GHz * Lownoisefigure:4.6dBat26GHz
ChipSize: ChipThickness: PadDimensions:
2350x1050m(92.5x41.3mils) 10010m(40.4mils) 80x80m(2.95x0.4mils)
ChipSizeTolerance: 10m(0.4mils)
Absolute Maximum Ratings [1]
Symbol
Vdd Idd Vg1 Ig1 Vg2 Ig2 Pin Tch Tb Tstg Tmax
Parameters/Conditions
PositiveDrainVoltage TotalDrainCurrent FirstGateVoltage FirstGateCurrent SecondGateVoltage SecondGateCurrent CWInputPower OperatingChannelTemperature OperatingBacksideTemperature StorageTemperature Max.AssemblyTemp(60secmax)
Units
V mA V mA V mA dBm C C C C
Min.
-9.5 -38 -3.5 -20 -55 -65
Max.
10 340 0 +1 +4 17 +150 +165 +300
Notes: 1. Absolutemaximumratingsforcontinuousoperationunlessotherwisenoted.
AMMC-5024 DC Specifications/Physical Properties[1]
Symbol
Idss Vp Vg2 Idsmin (Vg1) Idsmin (Vg2) ch-b
Parameters and Test Conditions
SaturatedDrainCurrent(Vdd =7V,Vg1=0V,Vg2=opencircuit) FirstGatePinch-offVoltage(Vdd=7V,Idd=30mA,Vg2=opencircuit) SecondGateSelf-biasVoltage(Vdd=7V,Idd=200mA,Vg2=opencircuit) FirstGateMinimumDrainCurrent (Vdd =7V,Vg1=-7V,Vg2=opencircuit) SecondGateMinimumDrainCurrent (Vdd =7V,Vg1=0V,Vg2= -3.5V) ThermalResistance[2](Backsidetemperature,Tb=25C)
Units
mA V V mA mA C/W
Min.
265
Typ.
350 -8.2 2.75 47 105 52
Max.
385
RF Specifications for High Power Applications[2, 3] (Vdd=7V,Idd(Q)=200mA,Zin= Zo =50
Symbol
|S21| |S21| RLin RLout |S12| P-1dB Psat OIP3 NF
2 2 2
Parameters and Test Conditions
Small-signalGain Small-signalGainFlatness InputReturnLoss OutputReturnLoss Isolation OutputPower@1dBGainCompression SaturatedOutputPower
rd
Units
f=22GHz f=22GHz dB dB dB dB dB dBm dBm dBm dB dB
Min.
14 12 10 26 21 23 27
Typ.
16 0.75 16.9 16.8 28 22.5 24.5 30 4.6 7.2
Max.
18 2
Output3 OrderInterceptPoint, Rfin1=Rfin2=2dBm, f=22GHz,f=2MHz NoiseFigure(Vds=3V,Ids=140mA) f=26GHz f=40GHz
6.5 9
RF Specifications for High Gain and Low Power Applications[2, 3] (Vdd=4V,Idd(Q)=160mA,Zin= Zo =50
Symbol
|S21| |S21| RLin RLout |S12| P-1dB Psat OIP3 NF
2 2 2
Parameters and Test Conditions
Small-signalGain Small-signalGainFlatness MinimumInputReturnLoss MinimumOutputReturnLoss Isolation OutputPower@1dBGainCompression SaturatedOutputPower
rd
Units
f=22GHz f=22GHz dB dB dB dB dB dBm dBm dBm dB dB
Min.

Typ.
17.5 1.5 13 13 30 17.3 20.5 22.5 3.7 5.5
Max.
Output3 OrderInterceptPoint, Rfin1=Rfin2=2dBm, f=22GHz,f=2MHz NoiseFigure f=26GHz f=40GHz
Notes: 1.BacksidetemperatureTb=25Cunlessotherwisenoted. 2. Datameasuredinwaferform,Tchuck=25C 3. 100%on-waferRFtestisdoneatfrequency=2,10,20,30and40GHz,exceptasnoted.
2
AMMC-5024 Typical Performance (Tchuck=25C,Vdd=7V,Idd=200mA,Vg2=Open,Z0=50)
20 18 16 14
S21 (dB)
0
0 -5
RETURN LOSS (dB)
S11(dB) S22(dB)
30 25
P-1, P-3 (dBm)
P-1 P-3
-20
S12 (dB)
-10 -15 -20 -25
20 15 10 5 0
12 10 8 6 4 2 0 0 10 20 30 40 -80 50
S21(dB) S12(dB)
-40
-60
-30
0
10
20
30
40
50
0
10
20
30
40
50
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 1. Gain and Reverse Isolation.
Figure 2. Return Loss (Input and Output).
Figure 3. Output Power (P-1 and P-3).
0.14 0.12
NOISE FIGURE (dB)
10
40
8
OIP3 (dBm)
0.1
td (nS)
30
0.08 0.06 0.04 0.02 0 0 10 20 30 40 50
6
20
4
2
10
0
0
10
20
30
40
50
0
0
10
20
30
40
50
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 4. Group Delay.
Figure 5. Noise Figure.
Figure 6. Output IP3.
3
AMMC-5024 Typical Scattering Parameters[1] (Tchuck=25C,VDD=7V,IDD=200mA,Z in=Zout=50)
Freq. GHz 0.05 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 dB -26.524 -24.941 -21.885 -19.412 -17.725 -16.970 -16.940 -17.741 -19.505 -22.752 -25.795 -21.613 -17.435 -14.804 -13.213 -12.628 -12.989 -14.171 -16.678 -20.641 -23.782 -21.425 -19.193 -18.288 -19.046 -21.832 -27.570 -28.076 -20.068 -16.785 -15.212 -14.889 -16.789 -18.936 -19.985 -19.130 -18.210 -18.457 -22.391 -24.387 -22.649 -20.369 -20.473 -20.560 -18.778 -19.072 -18.104 -14.701 -11.446 -9.005 -6.637 S11 Mag 0.047 0.057 0.080 0.107 0.130 0.142 0.142 0.130 0.106 0.073 0.051 0.083 0.134 0.182 0.218 0.234 0.224 0.196 0.147 0.093 0.065 0.085 0.110 0.122 0.112 0.081 0.042 0.039 0.099 0.145 0.174 0.180 0.145 0.113 0.100 0.111 0.123 0.119 0.076 0.060 0.074 0.096 0.095 0.094 0.115 0.111 0.124 0.184 0.268 0.355 0.466 Phase -174.370 -154.440 -146.320 -149.270 -157.970 -168.560 -179.420 170.600 163.170 163.190 -165.530 -134.230 -136.040 -147.840 -163.030 -179.470 163.010 147.400 135.040 130.070 154.470 177.240 173.670 156.910 138.050 114.120 67.164 -50.074 -96.000 -121.770 -145.820 -168.310 173.110 166.700 177.880 179.680 160.620 134.410 91.975 23.468 -37.468 -74.314 -84.567 -91.634 -92.252 -85.034 -73.258 -64.708 -65.771 -76.848 -89.734 dB 16.526 16.375 16.277 16.170 16.016 15.868 15.731 15.646 15.636 15.679 15.733 15.705 15.558 15.381 15.307 15.351 15.496 15.663 15.812 15.870 15.863 15.823 15.856 15.922 16.022 16.122 16.137 16.057 15.869 15.675 15.567 15.661 15.788 15.810 15.612 15.269 15.025 14.926 14.869 14.636 14.174 13.581 12.946 12.305 11.524 10.748 10.059 9.479 8.863 8.007 6.902 S21 Mag 6.703 6.588 6.514 6.434 6.321 6.214 6.117 6.058 6.051 6.081 6.119 6.099 5.997 5.876 5.826 5.855 5.954 6.070 6.174 6.216 6.211 6.182 6.206 6.253 6.326 6.399 6.410 6.351 6.215 6.078 6.003 6.068 6.158 6.173 6.034 5.800 5.640 5.576 5.539 5.393 5.113 4.776 4.439 4.123 3.769 3.447 3.184 2.978 2.774 2.514 2.214 Phase 179.390 155.660 133.110 110.580 88.271 66.412 44.780 23.511 2.105 -19.628 -42.046 -64.823 -87.590 -109.420 -130.680 -152.100 -174.100 163.120 139.670 115.610 91.770 67.954 44.285 20.329 -4.276 -29.641 -55.651 -82.011 -108.060 -133.780 -158.990 175.180 147.730 118.780 89.206 60.446 32.215 3.374 -27.424 -59.455 -92.328 -124.820 -157.360 169.650 136.220 103.130 69.590 34.467 -3.117 -42.656 -83.972 dB -66.134 -61.862 -55.350 -51.048 -48.620 -46.356 -44.560 -42.719 -41.197 -39.902 -38.851 -37.914 -37.130 -36.350 -35.589 -34.692 -33.794 -32.937 -32.208 -31.690 -31.208 -30.781 -30.231 -29.783 -29.336 -28.991 -28.757 -28.622 -28.763 -28.808 -28.853 -28.759 -28.591 -28.536 -28.676 -28.992 -29.214 -29.344 -29.287 -29.189 -29.513 -29.849 -30.351 -30.858 -31.563 -32.440 -33.098 -33.500 -33.995 -33.996 -34.691 S12 Mag 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.009 0.010 0.011 0.013 0.014 0.015 0.017 0.018 0.020 0.023 0.025 0.026 0.028 0.029 0.031 0.032 0.034 0.036 0.036 0.037 0.036 0.036 0.036 0.036 0.037 0.037 0.037 0.036 0.035 0.034 0.034 0.035 0.033 0.032 0.030 0.029 0.026 0.024 0.022 0.021 0.020 0.020 0.018 Phase -56.514 -109.670 -132.750 -153.970 -174.570 165.210 144.510 123.530 102.140 80.129 58.121 36.356 15.803 -4.845 -25.521 -45.793 -67.515 -90.266 -113.940 -137.810 -161.750 174.640 151.020 126.440 100.950 75.101 47.960 20.890 -6.265 -33.072 -59.523 -86.846 -115.960 -146.370 -177.890 151.190 120.660 90.933 60.092 27.357 -6.508 -39.965 -73.488 -107.270 -142.290 -175.820 150.230 119.650 83.945 49.390 15.240 dB -29.620 -29.934 -26.919 -25.153 -24.391 -24.068 -23.775 -22.940 -21.619 -20.245 -19.716 -20.130 -21.644 -22.284 -20.256 -18.092 -16.431 -15.737 -15.813 -16.780 -18.810 -21.397 -23.661 -21.101 -18.085 -15.617 -14.258 -13.705 -13.717 -14.430 -15.005 -15.146 -14.682 -13.588 -12.883 -12.719 -13.861 -15.387 -19.170 -30.763 -24.452 -17.619 -16.143 -16.259 -18.606 -24.603 -21.717 -15.939 -13.445 -12.285 -11.324 S22 Mag 0.033 0.032 0.045 0.055 0.060 0.063 0.065 0.071 0.083 0.097 0.103 0.099 0.083 0.077 0.097 0.125 0.151 0.163 0.162 0.145 0.115 0.085 0.066 0.088 0.125 0.166 0.194 0.206 0.206 0.190 0.178 0.175 0.184 0.209 0.227 0.231 0.203 0.170 0.110 0.029 0.060 0.132 0.156 0.154 0.117 0.059 0.082 0.160 0.213 0.243 0.272 Phase 7.766 12.796 18.718 10.362 0.922 -7.610 -12.684 -18.420 -28.987 -47.192 -73.520 -109.900 -157.830 137.330 76.041 29.951 -7.571 -40.792 -74.475 -106.600 -142.950 169.440 104.260 34.057 -13.560 -54.765 -92.329 -131.060 -171.110 145.610 97.895 46.328 -10.820 -62.908 -111.430 -155.460 164.720 122.630 84.484 20.516 -146.250 165.520 133.010 99.260 76.664 93.515 135.190 122.900 114.170 89.641 78.671
Note: 1. Dataobtainedfromon-wafermeasurements.
4
AMMC-5024 Typical Performance (Tchuck=25C,Vdd=4V,Idd=160mA,Vg2=Open,Z0=50)
20 0 0 -5
RETURN LOSS (dB)
S11(dB) S22(dB)
30 25
P-1, P-3 (dBm)
P-1 P-3
15
S21 (dB)
-20
S12 (dB)
-10 -15 -20 -25
20 15 10 5 0
10
-40
5
S21(dB) S12(dB)
-60
0
0
20
40
-80 50
-30
0
10
20
30
40
50
0
10
20
30
40
50
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 7. Gain and Reverse Isolation.
Figure 8. Return Loss (Input and Output).
Figure 9. Output Power (P-1 and P-3).
0.14 0.12
NOISE FIGURE (dB)
10
30 25 20 15 10
8
OIP3 (dBm)
0.1
td (nS)
0.08 0.06 0.04 0.02 0 0 10 20 30 40 50
6
4
2
5 0
0
0
10
20
30
40
50
0
10
20
30
40
50
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 10. Group Delay.
Figure 11. Noise Figure.
Figure 12. Output IP3.
5
AMMC-5024 Typical Scattering Parameters[1] (Tchuck=25C,VDD=4V,IDD=160mA,Z in=Zout=50)
Freq. GHz 0.05 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 dB -26.046 -25.998 -24.392 -22.084 -20.032 -18.871 -18.430 -18.727 -19.934 -22.656 -27.478 -25.347 -19.749 -16.206 -14.011 -12.962 -12.935 -13.689 -15.570 -19.085 -25.363 -26.442 -20.900 -18.349 -17.560 -18.343 -20.831 -25.482 -21.019 -15.842 -13.096 -11.817 -12.588 -14.900 -21.159 -20.309 -14.744 -12.538 -13.339 -15.011 -16.105 -14.757 -15.383 -21.471 -18.182 -12.590 -13.269 -20.284 -14.029 -9.656 -5.683 S11 Mag 0.050 0.050 0.060 0.079 0.100 0.114 0.120 0.116 0.101 0.074 0.042 0.054 0.103 0.155 0.199 0.225 0.226 0.207 0.167 0.111 0.054 0.048 0.090 0.121 0.132 0.121 0.091 0.053 0.089 0.161 0.221 0.257 0.235 0.180 0.088 0.097 0.183 0.236 0.215 0.178 0.157 0.183 0.170 0.084 0.123 0.235 0.217 0.097 0.199 0.329 0.520 Phase -175.110 -164.940 -151.920 -147.760 -152.230 -160.550 -170.290 179.750 170.600 164.210 -179.640 -126.840 -120.480 -131.310 -146.840 -164.520 176.980 159.730 143.690 128.620 133.080 -165.970 -156.420 -172.490 168.580 145.730 110.490 47.234 -43.397 -84.248 -115.690 -144.730 -171.610 163.390 161.170 -141.280 -158.220 170.230 132.480 78.005 6.891 -61.000 -108.170 -141.240 -72.748 -105.520 -153.320 126.900 -5.310 -41.069 -68.263 dB 16.908 16.786 16.727 16.657 16.538 16.419 16.305 16.225 16.227 16.287 16.384 16.410 16.336 16.209 16.158 16.210 16.352 16.530 16.717 16.846 16.926 16.965 17.054 17.170 17.320 17.534 17.708 17.813 17.786 17.674 17.547 17.670 17.969 18.362 18.588 18.465 18.201 18.066 18.167 18.276 18.189 17.917 17.784 17.922 17.442 15.750 13.940 12.983 11.793 7.696 4.495 S21 Mag 7.005 6.907 6.860 6.805 6.713 6.621 6.535 6.475 6.476 6.522 6.595 6.614 6.559 6.464 6.425 6.464 6.570 6.707 6.853 6.955 7.020 7.051 7.124 7.220 7.345 7.528 7.680 7.774 7.750 7.651 7.540 7.648 7.915 8.282 8.500 8.380 8.130 8.004 8.098 8.200 8.118 7.868 7.748 7.872 7.449 6.130 4.978 4.458 3.887 2.426 1.678 Phase 179.610 156.790 135.230 113.560 92.010 70.825 49.938 29.369 8.799 -12.033 -33.532 -55.435 -77.463 -98.816 -119.500 -140.230 -161.440 176.800 154.440 131.460 108.520 85.461 62.568 39.543 16.078 -8.082 -32.996 -58.575 -84.438 -110.030 -134.660 -159.020 175.550 148.060 118.310 88.090 59.059 30.963 1.607 -29.543 -62.709 -95.764 -128.890 -165.490 151.790 110.450 75.442 40.022 -5.741 -50.048 -69.558 dB -59.336 -65.942 -59.134 -54.398 -52.371 -49.621 -47.520 -45.659 -43.865 -42.482 -41.201 -40.162 -39.239 -38.327 -37.323 -36.407 -35.276 -34.270 -33.419 -32.607 -31.889 -31.268 -30.682 -30.022 -29.439 -28.885 -28.374 -27.893 -27.722 -27.501 -27.408 -27.130 -26.768 -26.185 -25.723 -25.559 -25.633 -25.760 -25.749 -25.454 -25.424 -25.415 -25.467 -25.277 -25.857 -27.536 -29.470 -30.994 -33.295 -39.913 -44.196 S12 Mag 0.001 0.001 0.001 0.002 0.002 0.003 0.004 0.005 0.006 0.008 0.009 0.010 0.011 0.012 0.014 0.015 0.017 0.019 0.021 0.023 0.025 0.027 0.029 0.032 0.034 0.036 0.038 0.040 0.041 0.042 0.043 0.044 0.046 0.049 0.052 0.053 0.052 0.052 0.052 0.053 0.054 0.054 0.053 0.054 0.051 0.042 0.034 0.028 0.022 0.010 0.006 Phase -61.940 -108.900 -128.490 -158.090 -178.300 161.460 141.190 119.280 97.498 74.972 53.471 31.594 10.910 -9.819 -29.734 -50.251 -72.076 -94.562 -118.010 -141.710 -166.020 169.730 145.660 121.250 96.409 70.972 44.076 17.025 -10.669 -38.170 -65.246 -92.100 -119.520 -148.970 179.060 145.960 113.580 82.862 52.499 20.356 -13.439 -47.607 -83.226 -122.260 -166.580 150.440 112.520 73.538 27.040 -10.430 11.969 dB -32.459 -34.057 -31.519 -30.113 -29.546 -28.527 -26.705 -24.546 -22.558 -21.031 -20.499 -20.801 -21.844 -22.131 -20.818 -19.513 -18.421 -18.158 -18.744 -20.205 -23.130 -27.569 -33.534 -26.084 -21.809 -18.685 -16.869 -15.693 -15.062 -15.047 -15.045 -14.911 -14.657 -13.556 -12.691 -12.218 -13.056 -14.378 -16.970 -21.811 -20.840 -16.035 -15.120 -16.069 -19.776 -14.233 -11.523 -10.251 -12.501 -17.076 -12.434 S22 Mag 0.024 0.020 0.027 0.031 0.033 0.037 0.046 0.059 0.074 0.089 0.094 0.091 0.081 0.078 0.091 0.106 0.120 0.124 0.116 0.098 0.070 0.042 0.021 0.050 0.081 0.116 0.143 0.164 0.177 0.177 0.177 0.180 0.185 0.210 0.232 0.245 0.222 0.191 0.142 0.081 0.091 0.158 0.175 0.157 0.103 0.194 0.265 0.307 0.237 0.140 0.239 Phase 16.703 5.690 17.159 12.590 10.367 9.842 8.417 -0.474 -17.521 -41.715 -72.840 -112.770 -161.860 138.490 82.104 36.945 -0.979 -34.038 -67.232 -96.759 -128.700 -173.310 98.102 10.942 -29.430 -66.154 -100.080 -136.500 -174.690 144.500 101.700 56.891 6.430 -42.887 -92.108 -138.540 -178.190 143.400 116.660 111.200 134.530 118.260 80.564 25.234 -75.636 -173.290 139.690 102.000 75.692 74.549 98.012
Note: 1. Dataobtainedfromon-wafermeasurements.
AMMC-5024 Typical Performance (OverTemperatureandVoltage)
25 30 25
S21, S11, and S22 (dB)
20 10 0 -10 -20 -30 -40
S11/80C S22/-40C S21/25C S22/80C S22/-40C S11/25C S21/80C S22/-40C S22/25C
20
20
GAIN (dB)
15
7V/200mA 6V/187mA 5V/174mA 4V/160mA 3V/147mA
P-1 (dBm)
15 10 5 0
7V/200mA 6V/187mA 5V/174mA 4V/160mA 3V/147mA
10
5
0
0
10
20
30
40
50
0
10
20
30
40
50
0
10
20
30
40
50
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 13. Gain and Voltage.
Figure 14. P-1 and Voltage.
Figure 15. Gain and Return Loss with Temperature.
8
30 25 20
P-1 (dBm)
7 6 5
P-1 (dBm)
NF/-40C NF/25C NF/80C
4 3 2 1 0 0 10 20 30 40 50
NOISE FIGURE (dB)
6
7V/200 mA 6V/187 mA 5V/174 mA 4V/160 mA 3V/147 mA
15 10 5 0
P-1/80C P-1/25C P-1/-40C
4
2
0
10
20
30
40
50
0
0
10
20
30
40
50
FREQUENCY (GHz)
FREQUENCY (GHz)
FREQUENCY (GHz)
Figure 16. P-1 and Temperature, Vdd=7V, Idd=200 mA.
Figure 17. Noise Figure and Temperature at Vdd=4V, Idd=160 mA.
Figure 18. Noise Figure and Voltage.
Biasing and Operation AMMC-5024 is biased with a single positive drain supply (Vdd)anegativegatesupply(Vg1)andhasapositivecontrol gatesupply(Vg2). For best overall performance the recommended bias condition for the AMMC-5024 isVdd =7V and Idd = 200 mA.To achieve this drain current level,Vg1 is typically between-2.5to-3.5V.Typically,DCcurrentflowforVg1 is-10mA.OpencircuitisthedefaultsettingforVg2when notutilizinggaincontrol. Usingthesimplestformofassembly(Figure20),thedevice iscapableofdeliveringflatgainovera2 - 50GHzrange withaminimumofgainslopeandripple.However,this device is designed with DC coupled RF I/O ports, and operation may be extended to lower frequencies (<2 GHz)throughtheuseofoff-chiplow-frequencyextension circuitryandproperexternalbiasingcomponents.With lowfrequencybiasextensionitmaybeusedinavariety oftime-domainapplications(through40Gb/s). Figure21showsatypicalassemblyconfiguration. WhenbypasscapacitorsareconnectedtotheAUXpads, thelowfrequencylimitisextendeddowntothecorner frequency determined by the bypass capacitor and the combinationoftheon-chip50ohmloadandsmalldequeing resistor. At this frequency the small signal gain willincreaseinmagnitudeandstayatthiselevatedlevel downtothepointwheretheCauxbypasscapacitoractsas anopencircuit,effectivelyrollingoffthegaincompletely. The low frequency limit can be approximated from the followingequation:
fCaux = 1 2Caux(Ro + RDEQ)
InputandoutputRFportsareDCcoupled;therefore,DC decouplingcapacitorsarerequiredifthereareDCpaths. (Donotattempttoapplybiastothesepads.) RFbondconnectionsshouldbekeptasshortaspossible toreduceRFleadinductancewhichwilldegradeperformanceabove20GHz. Anoptionaloutputpowerdetectornetworkisalsoprovided. Detector sensitivity is optimized by biasing the diodeswithtypicaldrainvoltageVdd=7volts.SimplyconnectingDet-BiastotheVddsupplyisaconvenientmethod ofbiasingthisdetectornetwork.Thedifferentialvoltage betweentheDet-RefandDet-Outpadscanbecorrelated withtheRFpoweremergingfromtheRFoutputport.A >0.5FcapacitorisrequiredfortheDet_Outpadtoexpandpowerdetectionperformancebelow100MHz. Groundconnectionsaremadewithplatedthrough-holes tothebacksideofthedevice;therefore,groundwiresare notneeded. Assembly Techniques Thechipshouldbeattacheddirectlytothegroundplane usingeitherafluxlessAuSnsolderpreformorelectrically conductiveepoxy[1].Forconductiveepoxy,theamount shouldbejustenoughtoprovideathinfilletaroundthe bottomperimeterofthedie.Thegroundplaneshould befreeofanyresiduethatmayjeopardizeelectricalor mechanical attachment. Caution should be taken to notexceedtheAbsoluteMaximumRatingforassembly temperatureandtime. Thermosonicwedgebondingisthepreferredmethodfor wireattachmenttothebondpads.TheRFconnections shouldbekeptasshortaspossibletominimizeinductance.Goldmesh[2]ordouble-bondingwith0.7milgold wireisrecommended. Meshcanbeattachedusinga2milroundtrackingtool andatoolforceofapproximately22gramswithanultrasonicpowerofroughly55dBforadurationof768mS. Aguidedwedgeatanultrasonicpowerlevelof64dBcan beusedforthe0.7milwire.Therecommendedwirebond stagetemperatureis1502C.
where: Roisthe50gateordrainlineterminationresistor. RDEQisthesmallseriesde-queingresistorand10. CauxisthecapacitanceofthebypasscapacitorconnectedtotheAUXDrainandAUXGatepadinfarads. WiththeexternalbypasscapacitorsconnectedtotheAUX gateandAUXdrainpads,gainwillshowaslightincrease between1.0and1.5GHz.ThisisduetoaseriescombinationofCauxandtheonchipresistancebutisexaggerated bytheparasiticinductance(Lc)ofthebypasscapacitorand theinductanceofthebondwire(Ld).Thereforethebond wirefromtheAuxpadstothebypasscapacitorsshould bemadeasshortaspossible.
The chip is 100 m thick and should be handled with care. This MMIC has exposed air bridges on the top surface. Handleatedgesorwithacustomcollet(donotpickup diewithvacuumondiecenter.) ThisMMICisalsostaticsensitiveandESDhandlingprecautionsshouldbetaken.
For more detailed information, see Avago Application Note54"GaAsMMICESD,DieAttachandBondingGuidelines." Notes: 1. Ablebond84-1LM1silverepoxyisrecommended. 2. Buckbee-MearsCorporation,St.Paul,MN,800-2623824
GND
DET_OUT
Drain Bias (Vdd) Vdd AUX
Nine Identical RF_Output
DET_BIAS Second Gate First Gate Bias (Vg1) RF_Input DET_REF
Figure 1. AMMC-5024 Schematic.
Vdd_AUX Vdd 0 165 1050 960 Vg2 485 RF INPUT 235 0 90
DET_Reference DET_Bias DET_Output 415 550 830 1270
GND 2260 RF Output 733
90 Vg1 2080 2350 2250 GND
Figure 20. AMMC-5024 Bonding Pad Locations. (dimensions in micrometers)
Drain bias must be decoupled from RF to lowest operating frequency 100 pF Capacitor
4 nH Inductor for operation to 2 GHz bond wire
VDD IN VG1
OUT
Gate is decoupled from RF. (Bond wire length is not important)
Figure 21. AMMC-5024 Assembly Diagram.
Ordering Information AMMC-5024-W10=10devicespertray AMMC-5024-W50=50devicespertray
For product information and a complete list of distributors, please go to our web site:
www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. Data subject to change. Copyright (c) 2006 Avago Technologies, Limited. All rights reserved. Obsoletes 5989-3931EN AV02-0632EN - September 11, 2007

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