**ADG5413FBRUZ: A Comprehensive Guide to the High-Voltage, Latch-Up Immune Quad SPST Switch**

In the realm of precision analog signal routing, the ability to reliably switch high voltages while maintaining signal integrity is a critical challenge. The **ADG5413FBRUZ from Analog Devices** stands out as a robust solution, engineered to meet the demanding requirements of industrial, instrumentation, and automated test equipment (ATE) applications. This article provides a comprehensive overview of this sophisticated component, exploring its key features, operational principles, and ideal use cases.

The ADG5413FBRUZ is a **monolithic quad, single-pole/single-throw (SPST) switch**. Each of the four independent switches is designed to handle a wide range of analog signals. Its most defining characteristic is its **high-voltage capability**, supporting bidirectional analog signals up to ±60 V. This makes it exceptionally suitable for systems that operate far beyond the standard supply rails of typical CMOS switches, such as those in semiconductor testers or piezoelectric transducer drivers.

A paramount concern in noisy or fluctuating power environments is the risk of latch-up—a destructive, high-current state triggered by voltage spikes. The ADG5413FBRUZ is specifically designed to be **latch-up immune**. This robust feature is achieved through Analog Devices' proprietary iCMOS® (industrial CMOS) process technology. This process not only enables high-voltage operation but also ensures the device remains immune to latch-up even under severe overvoltage conditions, significantly enhancing system reliability and longevity.

Beyond its high-voltage and latch-up immunity, the switch boasts an impressive **low on-resistance (Ron) of 35 Ω**, which remains exceptionally flat across the entire signal range. Low and stable on-resistance is crucial for minimizing signal distortion and power loss, ensuring that the switched signal is passed through with high fidelity. Furthermore, the device features **break-before-make switching action**, which is essential for preventing momentary shorting between channels during the switching process.

The digital interface is straightforward, controlled by standard **CMOS-compatible logic levels**, allowing for easy integration with modern microcontrollers, FPGAs, and DSPs. Each switch is controlled by its own logic input, providing flexible and independent channel control.

**Typical applications** for the ADG5413FBRUZ are diverse and include:

* **Automated Test Equipment (ATE):** For routing high-voltage signals from sources to device under test (DUT) pins.

* **Data Acquisition Systems (DAQ):** Multiplexing high-level analog signals from sensors and transducers.

* **Audio and Video Switching:** Routing high-swing signals in professional broadcast equipment.

* **Industrial Control Systems:** Communicating with actuators and sensors in harsh electrical environments.

* **Medical Instrumentation:** Where high reliability and signal accuracy are non-negotiable.

**ICGOODFIND:** The ADG5413FBRUZ is a superior quad SPST switch that sets a high bar for performance in challenging applications. Its combination of **high-voltage handling (±60 V), guaranteed latch-up immunity, low and flat on-resistance, and robust construction** makes it an indispensable component for designers who cannot compromise on system reliability or signal integrity. It effectively bridges the gap between high-voltage performance and the need for precise, distortion-free analog switching.

**Keywords:** High-Voltage Switching, Latch-Up Immune, Quad SPST Switch, Low On-Resistance, iCMOS Technology.