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| 27-31 GHz GaAs MMIC Driver Amplifier AA028P2-00 Features I Single Bias Supply Operation (6 V) I 14 dB Typical Small Signal Gain I 16 dBm Typical P1 dB Output Power at 28 GHz I 0.25 m Ti/Pd/Au Gates I 100% On-Wafer RF and DC Testing I 100% Visual Inspection to MIL-STD-883 MT 2010 0.617 Chip Outline 0.450 1.380 1.313 0.000 0.000 2.180 Description Alpha's two-stage reactively-matched 27-31 GHz GaAs MMIC driver amplifier has typical small signal gain of 14 dB with a typical P1 dB of 16 dBm at 28 GHz. The chip uses Alpha's proven 0.25 m MESFET technology, and is based upon MBE layers and electron beam lithography for the highest uniformity and repeatability. The FETs employ surface passivation to ensure a rugged, reliable part with through-substrate via holes and gold-based backside metallization to facilitate a conductive epoxy die attach process. All chips are screened for gain, output power and S-parameters prior to shipment for guaranteed performance. Designed for 27-31 GHz LMDS and digital radio bands. Dimensions indicated in mm. All DC (V) pads are 0.1 x 0.1 mm and RF In, Out pads are 0.07 mm wide. Chip thickness = 0.1 mm. Absolute Maximum Ratings Characteristic Operating Temperature (TC) Storage Temperature (TST) Bias Voltage (VD) Power In (PIN) Junction Temperature (TJ) Value -55C to +90C -65C to +150C 7 VDC 16 dBm 175C Electrical Specifications at 25C (VDS = 6 V) Parameter Drain Current Small Signal Gain Input Return Loss Output Return Loss Output Power at 1 dB Gain Compression Saturated Output Power Thermal Resistance1 1. Calculated value based on measurement of discrete FET. 2. Typical represents the median parameter value across the specified frequency range for the median chip. Condition F = 27-31 GHz F = 27-31 GHz F = 27-31 GHz F = 28 GHz F = 28 GHz Symbol IDS G RLI RLO P1 dB PSAT JC Min. 12 Typ.2 80 14 -11 -12 Max. 110 -6 -6 Unit mA dB dB dB dBm dBm C/W 13 14 16 17 198 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 12/99A 1 27-31 GHz GaAs MMIC Driver Amplifier AA028P2-00 Typical Performance Data 20 10 0 S21 Circuit Schematic (dB) S11 -10 -20 -30 -40 26 28 30 32 S12 V S22 Detail A Frequency (GHz) Typical Small Signal Performance S-Parameters (VDS = 6 V) RF IN See Detail A RF OUT Bias Arrangement 6V .01 F 50 pF RF IN RF OUT For biasing on, adjust VDS from zero to the desired value (6 V recommended). For biasing off, reverse the biasing on procedure. 2 Alpha Industries, Inc. [781] 935-5150 * Fax [617] 824-4579 * Email sales@alphaind.com * www.alphaind.com Specifications subject to change without notice. 12/99A |
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