GALI-84+

Overview

The GALI-84+ is a wideband monolithic microwave integrated circuit (MMIC) amplifier manufactured by Mini-Circuits. It operates from DC to 6 GHz with a typical gain of 11.8 dB and a noise figure of 5.3 dB. The device requires a supply voltage of 5.8 V and draws 100 mA. Key performance metrics include a P1dB compression point of 15.5 dBm, an OIP3 of 32.7 dBm, and an input return loss of 16.7 dB. It utilizes InGaP technology and is housed in a surface-mount SOT-89-4 package.

Feature Summary

• Wideband operation covering DC to 6 GHz frequencies
• High dynamic range suitable for linear amplification
• RoHS compliant construction with SnAgNi lead finish
• Repeatable performance characteristics across production lots

Applications

• CATV signal distribution systems
• DBS receiver front ends
• MMDS link applications
• Wireless LAN infrastructure components

Procurement Notes

Verify the specific suffix designation when ordering to ensure compliance with environmental standards such as RoHS requirements. Confirm that the SOT-89-4 package style matches the intended PCB layout constraints. Check datasheet specifications for thermal dissipation limits relative to the application environment. Ensure supply voltage stability aligns with the 5.8 V nominal requirement for optimal linearity.

Selection Notes

Select this component for applications requiring medium power linear amplification within the 6 GHz bandwidth. Consider the 100 mA current consumption for power budget calculations. Evaluate the 5.3 dB noise figure against system sensitivity requirements. The SOT-89-4 package offers a compact solution for space-constrained designs while maintaining 50-ohm impedance matching.

Part Context

The GALI-84+ belongs to the GALI series of MMIC amplifiers from Mini-Circuits. This series focuses on providing reliable, high-performance RF solutions for various communication bands. The '+' suffix typically indicates RoHS compliance compared to earlier versions. It serves as a fundamental building block for broadband RF circuits requiring stable gain and low distortion.

Replacement Considerations

Direct substitutes may include other Mini-Circuits GALI series amplifiers with similar gain and frequency ranges. Verify pinout compatibility when considering alternative packages. Cross-reference noise figure and power consumption if power efficiency is critical. Consult manufacturer documentation for updated equivalents within the same product family.