ADPA9002 Power Amplifier

ADI's ADPA9002 is a gallium arsenide (GaAs), pseudomorphic high electron mobility transistor (pHEMT), monolithic microwave integrated circuit (MMIC) power amplifier that operates between DC and 10 GHz. The amplifier provides 15 dB of gain, 42 dBm of OIP3, and 31.5 dBm of saturated output power (P_SAT) while requiring 385 mA from a 12 V supply. The ADPA9002 is self-biased in normal operation and has an optional bias control for supply quiescent current (I_DQ) adjustment. The amplifier is ideal for military and space and test equipment applications. The ADPA9002 also features inputs and outputs that are internally matched to 50 Ω housed in a RoHS compliant, 5 mm x 5 mm LFCSP premolded cavity package, making it compatible with high volume surface-mount technology (SMT) assembly equipment.

The ADPA9002-EVALZ consists of a dual-layer printed circuit board (PCB) fabricated from 10 mil thick Rogers 4350B™ copper-clad mounted to an aluminum heat sink. The heat sink assists in providing thermal relief to the ADPA9002 and mechanical support to the PCB. Mounting holes on the heat sink allow attachment to larger heat sinks for improved thermal management. The RFIN and RFOUT ports on the ADPA9002-EVALZ are populated with 2.9 mm female coaxial connectors (J1 and J2), and the corresponding RF traces have a 50 Ω characteristic impedance. The ADPA9002-EVALZ is populated with components suitable for use over the entire -40°C to +85°C operating temperature range of the ADPA9002.