37-40 GHz GaAs MMIC Driver Amplifier L t Alpha Features @ Single Bias Supply Operation (5 V) @ 13 dB Typical Small Signal Gain @ 15 dBm Typical P; ga Output Power at 38 GHz @ 0.25 um Ti/Pd/Au Gates M@ 100% On-Wafer RF and DC Testing @ 100% Visual Inspection to MIL-STD-883 MT 2010 Description Alphas two-stage reactively-matched 37-40 GHz GaAs MMIC driver amplifier has typical small signal gain of 13 dB with a typical P; gp of 15 dBm at 38 GHz. The chip uses Alphas proven 0.25 um 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 AA038P2-00 Chip Outline 1.525 oan 1ai3 | 0.761 J 0.000 3.050 Dimensions indicated in mm. All DC (V) pads are 0.1 x 0.1 mm and PF In, Out pads are 0.07 mm wide. Chip thickness = 0.1 mm. Absolute Maximum Ratings Characteristic Value -55C to +90C -65C to +150C Operating Temperature (Tc) Storage Temperature (Tst) part with through-substrate via holes and gold-based Bias Voltage (Vp) 7 Voc backside metallization to facilitate a conductive epoxy die Power In (Pin) 16 dBm attach process. All chips are screened for gain, output Junction Temperature (T) 175C power, and S-parameters prior to shipment for guaranteed performance. Electrical Specifications at 25C (Vps = 5 V) Parameter Condition Symbol Min. Typ. Max. Unit Drain Current Ips 75 110 mA Small Signal Gain F = 37-40 GHz G 11 13 dB Input Return Loss F = 37-40 GHz RL, -8 6 dB Output Return Loss F = 37-40 GHz RLo -20 -10 dB Output Power at 1 dB Gain Compression F = 38 GHz P+ gB 13 15 dBm Saturated Output Power F = 38 GHz Pgat 15 17 dBm Thermal Resistance! Ojo 199 C/W 1. Calculated value based on measurement of discrete FET. Alpha Industries, Inc. [781] 935-5150 Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com 1 Specifications subject to change without notice. 10/99A37-40 GHz GaAs MMIC Driver Amplifier AA038P2-00 Typical Performance Data Circuit Schematic 20.0 10.0 | 921 0.0 oo S -10.0 20.0 Detail A -30.0 $42 Vv -40.0 36 37 38 39 40 41 42 _ i Frequency (GHz) L | Typical Small Signal Performance = = = S-Parameters (Vps = 5 V ~ ( ) [HB-B tK- < RF IN See RF OUT . Detail A Bias Arrangement RF OUT For biasing on, adjust Vps 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. 10/99A