**ADUM7702-8BRIZ: A High-Performance, 16-Bit Isolated Sigma-Delta Modulator for Industrial Applications**
In the demanding landscape of industrial automation, motor control, and power management systems, the accurate and safe measurement of critical parameters is paramount. The **ADUM7702-8BRIZ** from Analog Devices stands as a pivotal solution, engineered to meet these challenges as a **high-performance, 16-bit isolated sigma-delta (Σ-Δ) modulator**. This device seamlessly integrates precision data acquisition with robust galvanic isolation, creating an indispensable component for modern industrial design.
At its core, the ADUM7702-8BRIZ converts analog input signals into a high-speed, single-bit data stream. This stream is processed by a digital filter, typically in an external microcontroller or DSP, to yield high-resolution digital values. The modulator offers **excellent AC performance**, characterized by a high signal-to-noise ratio (SNR) and outstanding offset and gain drift characteristics over temperature. This ensures precise monitoring of phase currents and voltages in systems like servo drives and solar inverters, even in electrically noisy environments.
A defining feature of the ADUM7702-8BRIZ is its **integrated iCoupler® isolation technology**. This provides a robust 5 kV RMS (for 1 minute) galvanic isolation barrier between the high-voltage sensing side and the low-voltage controller side. This isolation is critical for protecting sensitive control circuitry from destructive high-voltage transients and preventing ground loops, thereby enhancing system safety and reliability. The device operates from a single 5 V supply on both sides of the isolation barrier, simplifying power supply design.
Furthermore, its **compact 8-lead SOIC package** saves valuable board space compared to discrete solutions that would require an isolated modulator, isolated power supplies, and separate isolation components. This high level of integration not only reduces design complexity and component count but also improves overall system reliability.
**ICGOOODFIND**: The ADUM7702-8BRIZ is an optimal choice for designers seeking to achieve high-precision signal measurement and control in harsh industrial environments. Its combination of **16-bit resolution**, superior noise performance, and robust integrated isolation makes it a superior and reliable solution for enhancing the intelligence and safety of industrial systems.
**Keywords**: Sigma-Delta Modulator, Galvanic Isolation, Industrial Applications, High Resolution, iCoupler Technology.