**HMC773A: A High-Performance GaAs pHEMT MMIC Low-Noise Amplifier from 6 GHz to 26 GHz**

The **HMC773A** is a **gallium arsenide (GaAs) pseudomorphic high-electron-mobility transistor (pHEMT)** monolithic microwave integrated circuit (MMIC) low-noise amplifier designed to deliver exceptional performance across an ultra-wide frequency range of **6 GHz to 26 GHz**. This device is engineered to address the critical need for high-gain and low-noise figure in a multitude of modern microwave systems, including point-to-point and point-to-multi-point radios, military and space electronics, and 5G infrastructure.

A defining characteristic of the HMC773A is its **outstanding low-noise figure**. It achieves a remarkably flat noise figure of **1.8 dB** across a significant portion of its operational bandwidth. This low noise is critical for enhancing receiver sensitivity, ensuring that weak signals can be amplified with minimal degradation from the amplifier's own intrinsic noise. Complementing this is its high linearity, with an output third-order intercept point (OIP3) of typically +28 dBm, allowing it to handle strong interfering signals without generating significant intermodulation distortion.

The amplifier provides a substantial **high gain of 20 dB**, which remains exceptionally stable over temperature and supply voltage variations. This high level of amplification is vital for overcoming losses in subsequent stages of a receiver chain, such as in mixers and filters. The HMC773A is also highly integrated and easy to implement. It is internally matched to 50 Ohms at both its input and output, simplifying board design and reducing the need for external matching components. It requires a single positive supply voltage between +3 V to +5 V and features an optional shutdown/power-down mode, making it suitable for power-sensitive applications.

Housed in a compact, RoHS-compliant 4 mm x 4 mm LFCSP package, the HMC773A offers a powerful combination of wide bandwidth, low noise, high gain, and high linearity in a minimal footprint. Its robust performance makes it an indispensable component for designers pushing the boundaries of next-generation communication and radar systems.

**ICGOOODFIND:** The HMC773A stands out as a premier wideband MMIC LNA, offering an optimal balance of **ultra-low noise figure, high gain, and exceptional linearity** across the Ku- and K-bands, all within a single, easy-to-use package.

**Keywords:** Low-Noise Amplifier (LNA), GaAs pHEMT, Wideband, Microwave, High Linearity