**HMC495LP3ETR: A High-Performance GaAs pHEMT MMIC Low-Noise Amplifier for 17 to 24 GHz Applications**

The relentless drive for higher data rates and more sophisticated radar systems has intensified the demand for high-performance components in the Ku- and K-band spectrum. Addressing this need, the **HMC495LP3ETR** stands out as a premier **GaAs pHEMT MMIC Low-Noise Amplifier (LNA)** engineered explicitly for applications operating between **17 to 24 GHz**. This device integrates exceptional noise performance with high gain and linearity in a single, compact package, making it a critical building block for modern microwave systems.

Fabricated on an advanced Gallium Arsenide (GaAs) pseudomorphic High Electron Mobility Transistor (pHEMT) process, the HMC495LP3ETR achieves a remarkably low **noise figure of 1.8 dB** across its target frequency band. This superior noise characteristic is paramount for the first stage of a receiver chain, as it directly determines the system's sensitivity and its ability to discern weak signals from the inherent noise floor. Complementing its low-noise performance, the amplifier delivers a high **small-signal gain of 23 dB**, ensuring that signals are amplified sufficiently for subsequent processing stages with minimal added distortion.

Beyond noise and gain, the HMC495LP3ETR is designed for robust operation in demanding environments. It features a high **output IP3 of +27 dBm**, which defines its excellent linearity and ability to handle strong interfering signals without generating significant intermodulation distortion. This makes it ideal for applications where signal integrity is critical. The MMIC is also equipped with an integrated voltage regulator, enhancing its stability against supply voltage variations and temperature fluctuations. Furthermore, it is offered in a leadless 3x3 mm QFN surface-mount package (LP3), which is suitable for high-volume automated assembly and provides excellent thermal performance.

The combination of these attributes makes the HMC495LP3ETR an ideal solution for a wide array of next-generation systems. Its primary applications include:

* **Point-to-Point and Point-to-Multi-Point Radios:** Serving as the critical LNA in the receive path for high-capacity wireless backhaul links.

* **SATCOM and VSAT Terminals:** Enhancing receiver sensitivity in satellite communication uplinks and downlinks.

* **Military and Aerospace Radar Systems:** Providing reliable front-end amplification for fire control, seeker, and surveillance radars.

* **Test and Measurement Equipment:** Functioning as a pre-amplifier to improve the dynamic range and accuracy of spectrum analyzers and signal generators.

**ICGOOODFIND:** The HMC495LP3ETR is a quintessential high-performance MMIC LNA that masterfully balances ultra-low noise, high gain, and outstanding linearity within the 17-24 GHz range. Its robust design, facilitated by an integrated regulator and a thermally efficient package, ensures reliable performance for critical communications, radar, and electronic warfare systems, solidifying its status as a top-tier component for RF designers.

**Keywords:** Low-Noise Amplifier (LNA), GaAs pHEMT, 17-24 GHz, Noise Figure, Output IP3 (OIP3)