**ADG904BRUZ-REEL7: A 5 GHz, 4:1 CMOS MUX for High-Performance RF Switching**

In the rapidly evolving landscape of wireless communication, radar systems, and test instrumentation, the demand for high-frequency, low-loss signal routing components is paramount. The **ADG904BRUZ-REEL7**, a **monolithic 4:1 multiplexer (MUX)** fabricated on an advanced CMOS process, stands out as a critical solution designed to meet these stringent requirements. Operating seamlessly up to **5 GHz**, this device is engineered to provide exceptional RF performance while offering the integration and cost benefits of CMOS technology.

The core functionality of the ADG904BRUZ-REEL7 is to select one of four RF input paths and connect it to a common output. This makes it indispensable in applications where signal sources must be switched rapidly and accurately, such as in **multi-antenna systems**, **base station infrastructure**, and automated test equipment (ATE). Its architecture ensures high isolation between channels, minimizing crosstalk and signal leakage that can degrade system performance. Furthermore, it exhibits a low insertion loss, preserving signal integrity and power efficiency even at the upper end of its frequency range.

A significant advantage of this IC is its **CMOS construction**. Unlike traditional GaAs or SOI-based switches, CMOS offers a compelling blend of performance, low power consumption, and high levels of integration. This allows the ADG904 to be co-integrated with other digital and analog circuitry on the same die, simplifying board design and reducing the overall system footprint. The device features a **compact 16-lead TSSOP package**, making it suitable for space-constrained applications.

The digital control interface is another key feature, requiring only two **binary-coded control lines** to select the desired channel. This simple interface is compatible with standard logic levels from microcontrollers and FPGAs, ensuring easy integration into modern digital systems. The ADG904BRUZ-REEL7 also boasts a fast switching speed, enabling rapid reconfiguration in dynamic environments like frequency hopping or beamforming arrays.

Robustness is designed into every aspect. The device can handle RF input power levels up to +27 dBm, providing ample headroom for many high-power applications. Its ESD protection on the control pins enhances reliability during handling and assembly.

**ICGOOFind:** The ADG904BRUZ-REEL7 is a superior **4:1 RF MUX** that successfully bridges the gap between high-frequency performance and the economic advantages of CMOS integration. Its operation up to **5 GHz**, combined with low insertion loss, high isolation, and a simple control scheme, makes it an excellent choice for designers of next-generation RF systems seeking to enhance functionality without compromising on signal fidelity or power efficiency.

**Keywords:** RF Multiplexer, 5 GHz Bandwidth, CMOS Switch, High Isolation, Low Insertion Loss.