Product Description SNA-476 Stanford Microdevices’ SNA-476 is a GaAs monolithic broadband amplifier (MMIC) housed in a low-cost surface mountable stripline ceramic package. This amplifier provides 13dB of gain when biased at 70mA and 5.0V. DC-8 GHz, Cascadable GaAs MMIC Amplifier External DC decoupling capacitors determine low frequency response. The use of an external resistor allows for bias flexibility and stability. These unconditionally stable amplifiers are designed for use as general purpose 50 ohm gain blocks. Also available in chip form (SNA-400), its small size (0.4mm x 0.4mm) and gold metallization, make it an ideal choice for use in hybrid circuits. The SNA-476 is available in tape and reel at 1000, 3000 and 5000 devices per reel. Output Power vs. Frequency 22 20 18 Applications • Narrow and Broadband Linear Amplifiers • Commercial and Industrial Applications 16 14 0.1 0.5 1 1.5 2 4 6 8 10 GHz Electrical Specifications at Ta = 25C Sym bol G G P F BW 3dB P 1dB N F VSW R IP T 3 D IS O L VD P a r a m e te rs : T e s t C o n d itio n s : Id = 7 0 m A , Z 0 = 5 0 O h m s U n its M in . Ty p . 11 .0 1 0 .0 9 .0 1 3 .0 1 2 .0 11 .0 S m a l l S i g n a l P o w e r G a in f = 0 .1 -2 .0 G H z f = 2 .0 -6 .0 G H z f = 6 .0 -8 .0 G H z dB dB dB G a in F la tn e s s f = 0 .1 -6 .0 G H z dB + /- 1 .0 G H z 8 .0 1 7 .0 3 d B B a n d w id th O u tp u t P o w e r a t 1 d B C o m p r e s s io n f = 2 .0 G H z dBm N o is e F ig u re f = 2 .0 G H z dB In p u t / O u tp u t f = 0 .1 -8 .0 G H z T h ir d O rd e r In te r c e p t P o in t f = 2 .0 G H z dBm 3 4 .0 G r o u p D e la y f = 2 .0 G H z psec 120 R e v e r s e I s o la t i o n f = 0 .1 -8 .0 G H z D e v ic e V o lta g e 5 .5 M ax. 6 .0 1 .5 :1 dB V 1 8 .0 4 .3 5 .0 d G /d T D e v ic e G a in T e m p e r a t u r e C o e ff ic ie n t d B /d e g C -0 .0 0 2 7 d V /d T D e v ic e V o lta g e Te m p e r a t u r e C o e ff ic ie n t m V /d e g C -5 .0 5 .7 The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions. Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Stanford Microdevices does not authorize or warrant any Stanford Microdevices product for use in life-support devices and/or systems. Copyright 1999 Stanford Microdevices, Inc. All worldwide rights reserved. 522 Almanor Ave., Sunnyvale, CA 94086 Phone: (800) SMI-MMIC 5-57 http://www.stanfordmicro.com 50 Ohm Gain Blocks dBm Product Features • Cascadable 50 Ohm Gain Block • 13dB Gain, +17dBm P1dB • 1.5:1 Input and Output VSWR • Operates From Single Supply • Low Cost Stripline Mount Ceramic Package • Hermetically Sealed SNA-476 DC-8 GHz Cascadable MMIC Amplifier Typical Performance at 25° C (Vds = 5.0V, Ids = 70mA) |S11| vs. Frequency |S21| vs. Frequency 0 16 -5 14 -10 dB dB -15 12 10 -20 8 -25 0.1 0.5 1 1.5 2 4 6 8 0.1 10 0.5 1 1.5 2 4 6 10 8 10 8 10 |S22| vs. Frequency |S12| vs. Frequency 0 0 -5 -5 -10 -10 dB dB -15 -15 -20 -20 -25 -25 0.1 0.5 1 1.5 2 4 6 8 0.1 10 0.5 1 1.5 2 4 6 GHz GHz 50 Ohm Gain Blocks 8 GHz GHz Noise Figure vs. Frequency TOIP vs. Frequency 7 38 36 6 dBm dB 34 32 5 30 4 28 0.1 2.0 4.0 6.0 8.0 0.1 0.5 1 1.5 GHz 2 4 6 GHz Typical S-Parameters Vds = 5.0V, Id = 70mA Freq GHz |S11| S11 Ang |S21| S21 Ang |S12| S12 Ang |S22| S22 Ang .100 0.205 148 5.268 176 0.112 0 0.141 160 .250 0.233 136 5.124 166 0.111 9 0.157 150 .500 0.282 120 4.891 139 0.119 -29 0.185 121 1.00 0.295 64 4.793 101 0.118 -55 0.207 68 1.50 0.302 6 4.746 60 0.117 -87 0.227 13 2.00 0.290 -46 4.774 21 0.117 -113 0.231 -37 4.00 0.150 74 3.740 57 0.104 7 0.222 -90 6.00 0.164 -52 3.331 61 0.151 -2 0.130 1 0.275 161 2.973 -109 0.100 -115 0.190 147 8.00 (S-Parameters include the effects of two 1.0 mil diameter bond wires, each 20 mils long, connected to the gate and drain pads on the die) 522 Almanor Ave., Sunnyvale, CA 94086 Phone: (800) SMI-MMIC 5-58 http://www.stanfordmicro.com SNA-476 DC-8 GHz Cascadable MMIC Amplifier Absolute Maximum Ratings Part Number Ordering Information A b s o lu te M a xim u m P a r a m ete r D e vic e C urre nt Part Number Devices Per Reel SNA-476-TR1 1000 Reel Size 7" 3000 13" 5000 13" 1 0 0m A Po w e r D issipa tion 5 6 0m W SNA-476-TR2 R F In p ut Po w er 2 0 0m W SNA-476-TR3 Ju n ction Te m p e ra ture +2 0 0 C O p e ra tin g Te m p e ra tu re -4 5 C to +8 5 C Sto ra g e Te m pe ra tu re -6 5 C to +1 5 0 C R e c o m m e n d e d B ia s R e s is to r Va lu e s Supply Voltage(V s) 5V 7.5V 9V 12V 15V 20V R bias (O hm s) * 36 57 100 143 214 Notes: 1. Operation of this device above any one of these parameters may cause permanent damage. * Needs active biasing for constant current source MTTF vs. Temperature @ Id = 70mA Lead Temperature Junction Temperature MTTF (hrs) +45C +155C 1000000 +80C +190C 100000 +110C +220C 10000 6.0 5.0 Typical Biasing Configuration Pin Designation 1 RF in 2 GND 3 RF out and Bias 4 GND Typical Performance at 25° C Device Voltage vs. Id Power Gain vs. Device Current 5.5 14 13 5 12 Vdc 4.5 90mA dB 11 4 80mA 10 70mA 50mA 60mA 3.5 9 2 4 6 45 8 GHz 522 Almanor Ave., Sunnyvale, CA 94086 50 60 65 70 75 80 mA Phone: (800) SMI-MMIC 5-59 http://www.stanfordmicro.com 50 Ohm Gain Blocks Thermal Resistance (Lead-Junction): 315° C/W