HMC798ALC4 Overview
The HMC798ALC4 is a high-performance, ultra-low noise amplifier designed for applications requiring exceptional gain and linearity across a wide frequency range. Operating from DC to 4 GHz, this amplifier delivers consistent amplification with minimal distortion, making it ideal for sensitive RF front-end circuits. Its wide dynamic range and low noise figure enhance signal integrity in demanding communication systems. The device’s compact surface-mount package supports ease of integration in complex PCB layouts. For engineers and sourcing specialists seeking reliable, precision RF components, the HMC798ALC4 offers a robust solution from a trusted supplier of semiconductor ICs. For more details, visit IC Manufacturer.
HMC798ALC4 Technical Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | DC to 4 GHz |
| Gain | 18 dB typical |
| Noise Figure | 1.6 dB typical at 2 GHz |
| Input Return Loss | 15 dB typical |
| Output Return Loss | 12 dB typical |
| Input P1dB (1 dB Compression Point) | +13 dBm typical |
| Output IP3 (Third-Order Intercept Point) | +27 dBm typical |
| Supply Voltage | +5 V |
| Supply Current | 40 mA typical |
| Package | 4×4 mm QFN, surface mount |
HMC798ALC4 Key Features
- Wideband operation from DC to 4 GHz: Enables versatile use across multiple RF systems without the need for multiple amplifiers.
- Low noise figure of 1.6 dB: Enhances signal-to-noise ratio, critical for high-sensitivity receiver front ends.
- High linearity with +27 dBm OIP3: Minimizes intermodulation distortion, improving signal clarity in congested spectral environments.
- Compact 4×4 mm QFN package: Facilitates high-density PCB designs and reduces parasitics for better RF performance.
- Low power consumption (40 mA at 5 V): Supports energy-efficient system designs, crucial for battery-powered or heat-sensitive applications.
- Robust input and output return loss: Simplifies impedance matching and reduces signal reflections for improved overall system efficiency.
HMC798ALC4 Advantages vs Typical Alternatives
This amplifier provides superior noise performance and linearity compared to many standard RF amplifiers, making it particularly suited for precision communication and radar systems. Its low supply current combined with high gain and wideband coverage ensures efficient operation without sacrificing dynamic range. Additionally, the compact QFN package supports seamless integration into modern, space-constrained designs, setting it apart from bulkier, less efficient alternatives.
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Typical Applications
- RF receiver front ends in wireless communication systems, where low noise and high linearity improve sensitivity and signal fidelity across multiple frequency bands.
- Test and measurement equipment requiring stable gain and low distortion for accurate signal analysis.
- Military and aerospace radar systems demanding reliable, wideband amplification with minimal power consumption.
- Instrumentation and medical imaging devices benefiting from wide frequency range and low noise amplification for enhanced signal processing.
HMC798ALC4 Brand Info
The HMC798ALC4 is part of a family of RF amplifiers developed by a leading semiconductor provider specializing in high-frequency integrated circuits. Known for delivering reliable and high-precision components, the brand focuses on innovation in microwave and RF solutions for industrial, defense, and commercial markets. This model exemplifies their commitment to quality, combining advanced semiconductor processes with rigorous testing to meet demanding application needs.
FAQ
What frequency range does the HMC798ALC4 support?
The device operates from DC up to 4 GHz, covering a broad spectrum suitable for many RF and microwave applications, including communication, radar, and instrumentation systems.
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How does the noise figure impact amplifier performance?
A low noise figure, such as 1.6 dB typical at 2 GHz, means the amplifier





