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GALI-39+

GALI-39+

Mini-Circuits
RF Amplifier IC Cellular, PCS 0Hz ~ 7GHz SOT-89
Active4,599 in stock
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Overview

The GALI-39+ is a wideband Monolithic Microwave Integrated Circuit (MMIC) amplifier based on InGaP HBT technology, operating from DC to 7 GHz. It provides a stable 9.8dB gain and is internally matched to 50 ohms, simplifying integration into RF signal chains. Designed for reliable performance in communication systems, it features a low noise figure of 2.4dB and is housed in a thermally efficient SOT-89 package.

Why Choose This Part

The device offers excellent thermal management through its exposed metal bottom, resulting in low thermal resistance and high reliability. Its internal matching to 50 ohms eliminates the need for complex external tuning components, while the InGaP HBT construction ensures consistent performance across its 3.1V to 3.9V operating range.

Applications

Cellular and PCS Infrastructure
Used as a driver or buffer amplifier in base station transceivers and repeaters.
Communication Receivers
Functions as a gain block in the intermediate frequency (IF) or radio frequency (RF) stages to improve signal-to-noise ratios.
Low Phase Noise Systems
Suitable for local oscillator (LO) buffering where maintaining signal integrity and low phase noise is critical.
Broadband Instrumentation
Provides flat gain across a wide frequency range for test and measurement equipment up to 7 GHz.

Key Specifications

Gain 9.8dB
P1dB 10.5dBm
RF Type Cellular, PCS
Frequency 0Hz ~ 7GHz
Noise Figure 2.4dB
Mounting Type Surface Mount
Package / Case TO-243AA
Test Frequency 7GHz
Current - Supply 35mA
Voltage - Supply 3.1V ~ 3.9V
Supplier Device Package SOT-89

Getting Started

To implement this part, ensure a proper bias resistor (Rb) is selected based on the supply voltage to maintain the recommended 35mA operating current. The SOT-89 package requires a solid ground plane with via-stitching under the exposed metal pad to maximize heat dissipation. Typical circuits require DC blocking capacitors at the input and output and an RF choke (inductor) on the output bias line.