26-32 GHz GaAs MMIC Driver Amplifier L t Alpha Features @ Single Bias Supply Operation (6 V) @ 19 dB Typical Small Signal Gain @ 16 dBm Typical P; ga Output Power at 28 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 three-stage reactively-matched 26-32 GHz GaAs MMIC driver amplifier has typical small signal gain of 19 dB with a typical P, yp of 16 dBm at 28 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 AA028P3-00 Chip Outline 3.050 L. 2G] [ 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) rugged reliable part with through-substrate via holes and Bias Voltage (Vp) 7 Voc gold-based backside metallization to facilitate a Power In (Pin) 16 dBm conductive epoxy die attach process. All chips are Junction Temperature (T,) 175C screened for gain, output power and S-parameters prior to shipment for guaranteed performance. Designed for 26-32 GHz LMDS and digital radio bands. . gs . Electrical Specifications at 25C (Vps = 6 V) Parameter Condition Symbol Min. Typ. Max. Unit Drain Current Ips 145 200 mA Small Signal Gain F = 27-31 GHz G 17 19 dB Input Return Loss F = 27-31 GHz RL, -10 6 dB Output Return Loss F = 27-31 GHz RLo -10 6 dB Output Power at 1 dB Gain Compression F = 28 GHz P+ gB 14 16 dBm Saturated Output Power F = 28 GHz Pgat 15 18.5 dBm Thermal Resistance! Ojo 101 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. 10/99A 26-32 GaAs MMIC Driver Amplifier AA028P3-00 Typical Performance Data Circuit Schematic 30 20 10 0 oS -10 -20 -30 Detail A -40 -50 Vps 26 28 30 32 1 Frequency (GHz) | L Typical Small Signal Performance r r Lt S-Parameters (Vps = 6 V) ln {Hs HK | ; RF IN SEE RF OUT Bias Arrangement DETAIL A .01 pF 50 pF 6V , it CL [ a oO a RF IN 5 is RF OUT ' oO 9 E { 12 pwneee.t _ll 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