**ADUM6028-5BRIZ-RL: Powering High-Voltage Industrial Innovation with Integrated Signal Isolation**

In the demanding landscape of industrial automation, motor control, and renewable energy systems, the need for reliable power and data isolation is paramount. The **ADUM6028-5BRIZ-RL** from Analog Devices stands as a critical solution, integrating a **5 kV rms (7 kV PK) reinforced isolated DC-to-DC converter** with a dedicated Sigma-Delta (Σ-Δ) modulator into a single, compact package. This combination addresses two fundamental challenges in high-noise environments: providing clean, isolated power and enabling precise data acquisition across a high-voltage barrier.

**Uncompromising Safety and Power Integrity**

At the core of the ADUM6028-5BRIZ-RL is its **reinforced galvanic isolation**, certified to withstand 5 kV rms for one minute. This robust isolation is essential for protecting sensitive low-voltage circuitry (such as a system controller) from dangerous transients and faults on high-voltage bus lines. The integrated DC-DC converter supports a wide input voltage range (3.0 V to 5.5 V) and delivers a regulated, isolated 5 V output, capable of supplying up to 100 mA of power. This eliminates the need for a separate, bulky isolated power supply, **significantly reducing board space and design complexity**.

**Integrated Sigma-Delta Modulator: Bridging the Analog Divide**

A defining feature of this device is its integrated **Sigma-Delta modulator**. This component converts an analog input signal—typically from a shunt resistor measuring current or a sensor—into a high-speed, single-bit data stream. This digital stream is then easily transmitted across the isolation barrier with high noise immunity. On the other side, a simple digital filter (e.g., in an MCU) can reconstruct the original analog signal with high resolution. This architecture is superior to isolating an analog signal directly, as it avoids the linearity errors and temperature drift associated with analog isolation amplifiers.

**Key Advantages for System Design**

The integration of power and data channels offers several system-level benefits:

* **Enhanced Reliability:** By minimizing the number of discrete components, the system's Mean Time Between Failures (MTBF) is improved.

* **Simplified Compliance:** The device is designed to meet international safety standards like VDE 0884-11 and UL 1577, simplifying the end-equipment certification process.

* **Noise-Resistant Performance:** The digital communication of the analog measurement is inherently resistant to the electromagnetic interference (EMI) common in industrial settings.

**ICGOOODFIND**

The ADUM6028-5BRIZ-RL is a highly integrated, system-level solution that **efficiently solves the dual challenge of isolated power delivery and precision analog signal acquisition**. Its robust reinforced isolation and innovative use of a Sigma-Delta modulator make it an indispensable component for designing safer, more reliable, and higher-performance systems in high-voltage applications.

**Keywords:**

* Reinforced Isolation

* Sigma-Delta Modulator

* DC-to-DC Converter

* Galvanic Isolation

* High-Voltage