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| Up to 6 GHz Low Noise Silicon Bipolar Transistor Chip Technical Data AT-41400 Features * Low Noise Figure: 1.6 dB Typical at 2.0 GHz 3.0 dB Typical at 4.0 GHz * High Associated Gain: 14.5 dB Typical at 2.0 GHz 10.5 dB Typical at 4.0 GHz * High Gain-Bandwidth Product: 9.0 GHz Typical fT that are easy to match for low noise and moderate power applications. This device is designed for use in low noise, wideband amplifier, mixer and oscillator applications in the VHF, UHF, and microwave frequencies. An optimum noise match near 50 at 1 GHz , makes this device easy to use as a low noise amplifier. The AT-41400 bipolar transistor is fabricated using Hewlett-Packard's 10 GHz fT Self-Aligned-Transistor (SAT) process. The die is nitride passivated for surface protection. Excellent device uniformity, performance and reliability are produced by the use of ionimplantation, self-alignment techniques, and gold metalization in the fabrication of this device. Chip Outline Description Hewlett-Packard's AT-41400 is a general purpose NPN bipolar transistor chip that offers excellent high frequency performance. The 4 micron emitter-to-emitter pitch enables this transistor to be used in many different functions. The 14 emitter finger interdigitated geometry yields an intermediate sized transistor with impedances 4-99 5965-8922E AT-41400 Absolute Maximum Ratings Symbol VEBO VCBO VCEO IC PT Tj TSTG Parameter Emitter-Base Voltage Collector-Base Voltage Collector-Emitter Voltage Collector Current Power Dissipation [2,3] Junction Temperature Storage Temperature Units V V V mA mW C C Absolute Maximum[1] 1.5 20 12 60 500 200 -65 to 200 Thermal Resistance [2,4]: jc = 95C/W Notes: 1. Permanent damage may occur if any of these limits are exceeded. 2. TMOUNTING SURFACE = 25C. 3. Derate at 10.5 mW/C for TMOUNTING SURFACE > 153C. 4. The small spot size of this technique results in a higher, though more accurate determination of jc than do alternate methods. See MEASUREMENTS section "Thermal Resistance" for more information. Part Number Ordering Information Part Number AT-41400-GP4 Devices Per Tray 100 Note: For more information, see "Tape and Reel Packaging for Semiconductor Devices". Electrical Specifications, TA = 25C Symbol |S21E|2 P1 dB G1 dB NFO Parameters and Test Conditions[1] Insertion Power Gain; VCE = 8 V, IC = 25 mA Power Output @ 1 dB Gain Compression VCE = 8 V, IC = 25 mA 1 dB Compressed Gain; VCE = 8 V, IC = 25 mA Optimum Noise Figure: VCE = 8 V, IC = 10 mA f = 2.0 GHz f = 4.0 GHz f = 2.0 GHz f= 4.0 GHz f = 2.0 GHz f = 4.0 GHz f = 1.0 GHz f = 2.0 GHz f = 4.0 GHz f = 1.0 GHz f = 2.0 GHz f = 4.0 GHz Units dB dBm dB dB Min. Typ. Max. 12.0 6.5 19.0 18.5 15.0 10.5 1.3 1.6 3.0 18.5 14.5 10.5 9.0 30 150 300 0.2 1.0 GA Gain @ NFO; VCE = 8 V, IC = 10 mA dB fT hFE ICBO IEBO CCB Gain Bandwidth Product: VCE = 8 V, IC = 25 mA Forward Current Transfer Ratio; VCE = 8 V, IC = 10 mA Collector Cutoff Current; VCB = 8 V Emitter Cutoff Current; VEB = 1 V Collector Base Capacitance[2]: VCB = 8 V, f = 1 MHz GHz -- A A pF 0.17 Notes: 1. RF performance is determined by packaging and testing 10 devices per wafer. 2. For this test, the emitter is grounded. 4-100 AT-41400 Typical Performance, TA = 25C 24 21 18 GAIN (dB) 15 12 9 6 NF50 GA 16 15 14 GAIN (dB) 13 12 4 NFO (dB) 4V 6V 10 V NFO GA 10 V 6V 4V 16 14 12 GAIN (dB) 10 8 GA 2.0 GHz 4.0 GHz 8 6 NF (dB) 4 NFO 3 2 1 4 NFO 2.0 GHz 3 0 0.5 1.0 2.0 2 2 0 0 3.0 4.0 5.0 0 10 20 30 40 0 10 20 30 40 FREQUENCY (GHz) IC (mA) IC (mA) Figure 1. Noise Figure and Associated Gain vs. Frequency. VCE = 8 V, IC = 10mA. Figure 2. Optimum Noise Figure and Associated Gain vs. Collector Current and Collector Voltage. f = 2.0 GHz. Figure 3. Optimum Noise Figure and Associated Gain vs. Collector Current and Frequency. VCE = 8 V. 24 P1 dB (dBm) 40 35 20 1.0 GHz 20 P1dB GA (dB) 16 25 2.0 GHz |S21E|2 GAIN (dB) 2.0 GHz 4.0 GHz 30 16 MSG 11 2.0 GHz 20 15 10 5 |S21E|2 MAG 12 G1 dB (dB) 4.0 GHz G1dB 8 4.0 GHz 8 4 4 0 0 10 20 30 40 0.1 0.3 0.5 1.0 3.0 6.0 IC (mA) FREQUENCY (GHz) 0 0 10 20 30 40 IC (mA) Figure 4. Output Power and 1 dB Compressed Gain vs. Collector Current. VCE = 8 V. Figure 5. Insertion Power Gain, Maximum Available Gain and Maximum Stable Gain vs. Frequency. VCE = 8 V, IC = 25 mA. Figure 6. Insertion Power Gain vs. Collector Current and Frequency. VCE = 8 V. 4-101 NFO (dB) 4.0 GHz 6 AT-41400 Typical Scattering Parameters, Common Emitter, ZO = 50 , TA = 25C, VCE = 8 V, IC = 10 mA Freq. S11 S21 GHz Mag. Ang. dB Mag. Ang. 0.1 .73 -39 28.3 25.84 159 0.5 .60 -121 22.2 12.91 113 1.0 .57 -156 17.2 7.27 94 1.5 .56 -172 13.7 4.84 84 2.0 .57 176 11.4 3.71 77 2.5 .57 170 9.5 2.97 71 3.0 .60 164 8.0 2.52 64 3.5 .60 157 6.8 2.18 61 4.0 .61 152 5.5 1.89 55 4.5 .63 147 4.7 1.72 51 5.0 .63 144 3.7 1.53 46 5.5 .65 139 3.1 1.42 42 6.0 66 136 2.1 1.28 38 dB -39.2 -30.2 -28.0 -26.4 -24.9 -23.6 -22.3 -20.9 -20.1 -18.7 -17.8 -17.0 -16.1 S12 Mag. .011 .031 .040 .048 .057 .066 .077 .090 .099 .116 .129 .141 .156 S22 Ang. 75 48 51 59 66 69 72 77 79 81 80 82 83 Mag. .94 .61 .50 .47 .46 .46 .45 .47 .47 .47 .48 .49 .50 Ang. -12 -28 -25 -25 -24 -26 -28 -29 -30 -36 -40 -44 -47 AT-41400 Typical Scattering Parameters, Common Emitter, ZO = 50 , TA = 25C, VCE = 8 V, IC = 25 mA Freq. S11 S21 GHz Mag. Ang. dB Mag. Ang. 0.1 .56 -60 31.8 39.07 152 0.5 .54 -145 23.5 15.00 104 1.0 .54 -170 18.1 8.03 90 1.5 .55 179 14.5 5.30 82 2.0 .56 170 12.1 4.04 76 2.5 .56 165 10.2 3.24 72 3.0 .58 159 8.8 2.75 65 3.5 .59 154 7.5 2.37 62 4.0 .60 149 6.3 2.06 57 4.5 .61 145 5.4 1.87 53 5.0 .62 142 4.5 1.67 49 5.5 .64 137 3.8 1.54 44 6.0 .65 134 2.9 1.40 41 A model for this device is available in the DEVICE MODELS section. dB -40.9 -32.8 -29.6 -26.9 -24.7 -23.1 -21.6 -20.4 -19.3 -18.1 -17.3 -16.5 -15.7 S12 Mag. .009 .023 .033 .045 .058 .070 .083 .096 .108 .124 .136 .150 .165 S22 Ang. 69 56 65 72 75 78 79 82 83 84 83 85 84 Mag. .87 .49 .42 .41 .41 .40 .40 .41 .42 .42 .43 .42 .44 Ang. -18 -28 -23 -22 -23 -23 -25 -26 -28 -33 -36 -40 -45 AT-41400 Noise Parameters: VCE = 8 V, IC = 10 mA Freq. GHz 0.1 0.5 1.0 2.0 4.0 NFO dB 1.2 1.2 1.3 1.6 3.0 opt Mag .12 .10 .06 .24 .52 Ang 3 15 27 163 -153 RN/50 0.17 0.17 0.16 0.16 0.18 4-102 AT-41400 Chip Dimensions 30 m DIA 1.18 mil Base Pad 90 m 3.54 mil 250 m 9.8 mil Emitter Pad 250 m 9.8 mil Note: Die thickness is 5 to 6 mil. 4-103 |
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