**ADG1423BRMZ: A High-Performance, Quad SPST CMOS Analog Switch for Precision Signal Routing Applications**

In the realm of precision signal chain design, the selection of switching components is critical to maintaining signal integrity, minimizing distortion, and ensuring system accuracy. The **ADG1423BRMZ** from Analog Devices stands out as a premier solution, engineered to meet the stringent demands of high-performance test and measurement equipment, data acquisition systems, medical instrumentation, and automated test equipment (ATE).

This integrated circuit is a **monolithic, quad, single-pole/single-throw (SPST) analog switch** fabricated on an advanced CMOS process. Each of the four independent switches is designed to conduct signals equally well in both directions when on, and to provide **exceptional isolation when off**. A key feature of the ADG1423BRMZ is its **break-before-make switching action**, a crucial characteristic that prevents momentary shorting of signals during the switching process, thereby protecting sensitive downstream components.

The performance metrics of the ADG1423BRMZ are what truly define its capability in precision routing applications. It boasts an **ultra-low on-resistance (Ron) of just 2.5 Ω**, which remains exceptionally flat across the input signal range. This low and linear Ron is paramount as it minimizes insertion loss and reduces signal distortion, especially critical when routing low-level analog signals or high-speed data. Furthermore, the device operates from a **single supply from +3.3 V to +30 V or dual supplies up to ±20 V**, offering tremendous flexibility in various system-level designs.

Charge injection, a common phenomenon in CMOS switches that can introduce glitches and errors in precision sampling circuits, is meticulously managed in this design. The **low charge injection of typically 15 pC** ensures minimal disturbance to the held voltage in sample-and-hold applications, leading to higher acquisition accuracy. Complementing this is its **fast switching speed**, with a ton typically at 90 ns, enabling rapid signal multiplexing in high-throughput systems.

The device is offered in a compact **10-lead MSOP package**, making it suitable for space-constrained PCB designs. Its robust architecture ensures **latch-up immunity** and is compliant with the **±15 kV human body model (HBM) for electrostatic discharge (ESD) protection**, enhancing reliability in harsh environments.

**ICGOODFIND**: The ADG1423BRMZ is a top-tier quad SPST analog switch that delivers a combination of **very low on-resistance, high linearity, and fast switching** in a small form factor. It is an optimal choice for designers who cannot compromise on signal fidelity in precision analog routing and multiplexing applications, offering a reliable and high-performance switching solution.

**Keywords**: CMOS Analog Switch, Low On-Resistance, Precision Signal Routing, Break-Before-Make, Charge Injection.