Broadcom Inc. RF Amplifiers MGA-21108-TR2G

The MGA-21108-TR2G is a fully integrated GaAs low-noise amplifier MMIC designed for broadband applications in the frequency range of 1.5 to 8 GHz. It features a compact 2.5 x 2.5 x 0.55 mm 8-pin STSLP package and requires only one external input matching component for optimal performance. The amplifier provides a high gain of 18.7 to 10.7 dB and a low noise figure of 1.5 to 2.8 dB across its operating frequency range. It operates on a single supply voltage of 1.4V to 3.3V with a nominal current of 18 mA, making it suitable for low-power applications. The device includes a CMOS-compatible shutdown pin that can also function as a variable gain bias control. The MGA-21108 is internally matched to 50 Ohms at the RF output, simplifying integration into various systems. Typical applications include low-noise amplifiers for GPS, WCDMA, and IEEE 802.11 standards, as well as multistandard, multiband radio applications. Engineers considering this product should note its low-profile design, ease of use, and robust performance characteristics, which make it a viable option for a range of RF amplification needs.