**ADG609BRU: A Comprehensive Technical Overview of the 4-Channel Multiplexer/Demultiplexer**

The **ADG609BRU** represents a pinnacle of precision switching technology, engineered to provide robust performance in a wide array of electronic applications. As a monolithic CMOS device, it integrates four independently selectable single-pole/double-throw (SPDT) switches, configurable as either a 4-channel multiplexer or a 1:4 demultiplexer. This inherent flexibility makes it an indispensable component for routing analog or digital signals in data acquisition systems, automated test equipment (ATE), communication infrastructure, and audio/video signal routing.

Housed in a compact 16-lead TSSOP package, the **ADG609BRU** is designed for space-constrained PCB layouts without compromising functionality. A cornerstone of its design is its **low power consumption**, a direct benefit of its advanced CMOS construction, making it ideal for battery-powered and portable devices. Furthermore, the device operates over a broad **single-supply range from +2.7 V to +5.5 V**, while also supporting dual-supply operations from ±2.7 V to ±5.5 V, offering significant design versatility for various system-level voltage requirements.

Signal integrity is paramount, and the ADG609BRU excels with its **low on-resistance of just 5 Ω (typical)**. This minimal resistance ensures negligible signal attenuation and distortion, which is critical for maintaining the fidelity of both analog and high-speed digital signals. Complementing this is an exceptionally **flat on-resistance response** across the entire analog input range, guaranteeing linear performance. The device also features **fast switching times**, with tON typically at 75 ns and tOFF at 45 ns, enabling it to handle rapid signal switching demands in high-throughput systems.

The digital interface is equally robust, built around a **2-bit binary address line (A0, A1)** and an enable pin (EN). This simple TTL/CMOS-compatible control logic ensures easy integration with modern microcontrollers, DSPs, and FPGAs. The **break-before-make switching action** is a critical safety feature that prevents momentary shorting between channels during transition, protecting both the source signals and the multiplexer itself.

In summary, the ADG609BRU stands out as a highly reliable and efficient solution for complex signal routing challenges, combining low power, high performance, and ease of use in a single integrated circuit.

**ICGOOODFIND**: The ADG609BRU is a superior choice for designers seeking a high-performance, versatile, and space-efficient multiplexing solution, offering an exceptional blend of low on-resistance, fast switching, and wide voltage range operation.

**Keywords**: Low On-Resistance, CMOS Technology, Single/Dual-Supply Operation, Break-Before-Make, Fast Switching Times.