**ADG1408SRU-EP: A High-Performance, Radiation-Tolerant 8:1 Analog Multiplexer for Demanding Aerospace and Defense Applications**

In the critical domains of aerospace and defense, electronic components are subjected to extreme environmental conditions, including wide temperature fluctuations, mechanical stress, and high levels of ionizing radiation. Standard commercial-grade integrated circuits are susceptible to failure in such harsh settings, potentially jeopardizing mission success and system integrity. The **ADG1408SRU-EP** from Analog Devices is engineered specifically to meet these formidable challenges, representing a pinnacle of reliability and performance in signal switching.

This device is an **8-channel single-ended analog multiplexer**, designed to handle a wide range of analog signals. Its core function is to select one of eight independent input signals and connect it to a common output, a vital operation in data acquisition systems, sensor arrays, and instrumentation within satellites, avionics, and military hardware. The **ADG1408SRU-EP** stands out due to its exceptional **-3 dB signal bandwidth of 900 MHz**, enabling it to accurately process high-frequency signals with minimal distortion or loss of fidelity. This makes it indispensable for high-speed data routing and precision measurement applications.

A defining characteristic of this multiplexer is its **guaranteed radiation tolerance**. It is manufactured on a specialized silicon process that provides inherent resilience against the damaging effects of space and atmospheric radiation. The device is **latch-up immune** under any condition, a critical feature that prevents catastrophic failure caused by single-event latch-up (SEL). Furthermore, it is tested and specified for **single-event effects (SEE)** and **total ionizing dose (TID) performance up to 100 krad(Si)**, ensuring long-term functionality and data integrity in orbital and high-altitude missions.

Beyond its radiation hardening, the **ADG1408SRU-EP** delivers outstanding electrical performance. It features a very low **on-resistance (Ron) of 4.5 Ω**, which remains flat across the entire signal range, minimizing insertion loss and distortion. Its **±3.3 V to ±5.5 V dual-supply operation** provides design flexibility for various system voltages. The device also boasts ultra-low power consumption and is designed for **fail-safe operation**, protecting downstream circuitry during power-up or power-down sequences.

Housed in a compact, robust 16-lead TSSOP package, this multiplexer is built for reliability. It is subject to stringent **military-grade screening and flow**, ensuring performance across the demanding **extended industrial temperature range (-55°C to +125°C)**. This makes it not only suitable for space but also for rugged ground-based defense systems and down-hole drilling applications.

**ICGOODFIND:** The ADG1408SRU-EP is an exemplary solution for mission-critical systems where failure is not an option. Its combination of **high-speed performance, ultra-low on-resistance, and superior radiation hardening** establishes it as the multiplexer of choice for engineers designing the next generation of aerospace and defense electronics.

**Keywords:**

* **Radiation-Tolerant**

* **Analog Multiplexer**

* **Aerospace Applications**

* **High-Performance**

* **Single-Event Latch-Up Immune**