**AD8213WYRMZ: High Common-Mode Voltage, Bidirectional Current Shunt Monitor**

In the realm of precision electronics, accurately measuring current in systems with high common-mode voltages presents a significant challenge. The **AD8213WYRMZ** stands out as a specialized solution, engineered to deliver precise bidirectional current sensing in demanding industrial, automotive, and telecommunications applications. This integrated circuit (IC) combines high accuracy with robust performance, making it an indispensable component for system monitoring and control.

The core strength of the **AD8213WYRMZ** lies in its ability to **accurately amplify a small differential voltage** developed across a current shunt resistor, even when this resistor is subjected to **high common-mode voltages of up to 65 V**. This capability is crucial in environments like motor control systems, battery management, and power supplies, where the shunt resistor must often float at a voltage far above ground. Unlike traditional operational amplifier solutions that require complex external circuitry for level-shifting and common-mode rejection, the AD8213 integrates these functions, simplifying design and enhancing reliability.

A key feature of this device is its **bidirectional current sensing**. It can seamlessly measure currents flowing in both directions, which is essential for applications such as H-Bridge motor control or monitoring charge and discharge cycles in battery systems. The output voltage is centered on a precise **reference pin voltage (typically half the supply voltage)**, providing a clear, ratiometric output that indicates both the magnitude and direction of the current flow.

The **AD8213WYRMZ** offers a fixed gain of 20 V/V, optimized for use with low-value shunt resistors to minimize power loss and heating. Its high common-mode rejection ratio (CMRR) across a wide frequency range ensures that measurements remain accurate despite noise or fluctuations on the supply line. Furthermore, it operates from a single +5 V supply, drawing a low quiescent current, which makes it suitable for power-sensitive applications.

Designed for rugged environments, the device is specified over the extended industrial temperature range (-40°C to +125°C) and is available in a space-saving 8-lead SOIC package (RMZ), ensuring both durability and ease of integration into various board layouts.

**ICGOODFIND**

The AD8213WYRMZ is a superior choice for engineers seeking a robust, integrated solution for high-voltage bidirectional current measurement. Its high accuracy, ease of use, and resilience in harsh electrical environments make it a critical component for enhancing system efficiency and safety.

**Keywords:** Bidirectional Current Sensing, High Common-Mode Voltage, Current Shunt Monitor, Precision Measurement, Motor Control