**HMC747LC3C: A High-Speed, InGaP GaAs MMIC Digital Attenuator**

The **HMC747LC3C** represents a significant advancement in **high-frequency signal control**, engineered to meet the rigorous demands of modern RF and microwave systems. As a **monolithic microwave integrated circuit (MMIC)** fabricated using **Indium Gallium Phosphide (InGaP) GaAs** technology, this digital attenuator delivers exceptional performance, speed, and reliability for applications requiring precise signal attenuation.

Operating over a broad frequency range from **DC to 14 GHz**, the HMC747LC3C is designed for use in **5G infrastructure, microwave backhaul, test and measurement equipment, and aerospace/defense systems**. It provides **6-bit digital attenuation**, offering a total attenuation range of 31.5 dB with a step size of 0.5 dB. This high resolution allows for fine-grained control of signal amplitude, which is critical for maintaining signal integrity and optimizing system dynamic range.

A key feature of the HMC747LC3C is its **remarkable switching speed of 5 nanoseconds**. This ultra-fast performance enables rapid adjustments in **beamforming networks, digital phase shifters, and automatic gain control loops**, making it ideal for real-time adaptive systems. The attenuator also exhibits **low insertion loss and excellent phase stability** across its entire attenuation range, minimizing distortion and preserving signal quality.

The device integrates **on-chip CMOS drivers**, simplifying interface with digital control systems and reducing external component count. Its **compact, leadless ceramic package (LC3)** ensures robust performance in high-density PCB layouts while providing superior thermal management. Furthermore, the HMC747LC3C is characterized by **high linearity and power handling capability**, supporting high-performance applications without compromising signal fidelity.

**ICGOOODFIND**: The HMC747LC3C stands out as a high-speed, precision digital attenuator leveraging advanced InGaP GaAs technology. Its combination of broad bandwidth, fast switching, and low phase distortion makes it an optimal solution for next-generation RF and microwave systems demanding accuracy and speed.

**Keywords**:

**High-Speed Switching**

**InGaP GaAs MMIC**

**Digital Attenuator**

**Broadband Performance**

**Low Insertion Loss**