**ADG1422BRMZ: A High-Performance, Low rON Quad SPST Switch for Precision Signal Routing**

In the realm of precision electronics, the accurate routing of sensitive analog and digital signals is paramount. The **ADG1422BRMZ from Analog Devices** stands out as a critical component engineered to meet this exacting demand. This device is a monolithic, CMOS-based **quad single-pole/single-throw (SPST) switch** renowned for its exceptional performance in signal chain applications. It is specifically designed to provide a seamless and highly reliable path for signals in test and measurement equipment, data acquisition systems, medical instrumentation, and automated test equipment (ATE).

A defining characteristic of the ADG1422BRMZ is its **extremely low on-resistance (rON) of just 0.8 Ω typical**. This minimal resistance is crucial as it ensures that signal attenuation and distortion are kept to an absolute minimum, preserving the integrity of even the most delicate low-voltage signals. The flatness of this on-resistance across the input signal range further enhances linearity, making it an ideal choice for high-precision applications.

Beyond its low rON, the switch boasts an **impressively low power consumption**, a direct benefit of its advanced CMOS construction. This feature is essential for power-sensitive portable and battery-operated devices. Furthermore, the ADG1422BRMZ operates from a single positive supply ranging from +3.3 V to +5.5 V, simplifying power management design. Each switch features a **break-before-make action**, preventing momentary shorting between channels during switching transitions, which is vital for protecting downstream circuitry.

The device offers both normally open (NO) and normally closed (NC) switch configurations, providing designers with greater flexibility in system architecture. Its fast switching speeds ensure that signals can be routed or multiplexed rapidly, which is critical for high-throughput systems. Housed in a compact 10-lead MSOP package, the ADG1422BRMZ delivers this high performance while occupying a minimal footprint on the board.

**ICGOODFIND**: The ADG1422BRMZ is a superior quad SPST switch that sets a high bar for precision signal routing. Its combination of **ultra-low on-resistance**, low power operation, single-supply compatibility, and robust construction makes it an indispensable component for designers who cannot compromise on signal fidelity and system reliability.

**Keywords**: Low On-Resistance (rON), Precision Signal Routing, Quad SPST Switch, Low Power Consumption, Break-Before-Make.