GALI-2+
Overview
The GALI-2+ is a wideband Monolithic Microwave Integrated Circuit (MMIC) amplifier designed for high dynamic range and flat gain across a broad frequency spectrum. It utilizes InGaP HBT technology to provide a robust gain block solution in a compact SOT-89 package. This component is internally matched to 50 ohms, simplifying integration into RF signal chains by reducing the need for external matching components.
Why Choose This Part
The GALI-2+ offers an excellent balance of power gain and high linearity with a typical output IP3 that ensures minimal signal distortion. Its Darlington configuration provides high reliability and thermal stability, while the single DC supply requirement simplifies PCB power routing.
Applications
Getting Started
When designing with the GALI-2+, ensure proper DC biasing through an external resistor and RF choke to set the operating current, typically around 40mA. Use high-frequency layout techniques including short trace lengths and multiple ground vias under the device to minimize parasitic inductance. Evaluation boards such as the TB-03 are often available from the manufacturer to verify performance before final PCB integration.
