**AD8210WYRZ: A High Common-Mode Voltage, Current-Shunt Monitor**

In the realm of precision electronics, accurately measuring current in systems with high voltages is a persistent challenge. The **AD8210WYRZ** from Analog Devices stands as a pivotal solution, engineered specifically as a **high common-mode voltage, current-shunt monitor**. This device excels in environments where precise current sensing is required amidst significant voltage fluctuations, making it indispensable for industrial, automotive, and telecommunications applications.

The core functionality of the AD8210WYRZ revolves around its ability to **reject high common-mode voltages up to 65V**. This exceptional capability allows it to accurately amplify a small differential voltage developed across a current-shunt resistor, even when this resistor is riding on a high-voltage rail. The internal architecture of the AD8210, a zero-drift amplifier, ensures that the output voltage is a precise, gain-scaled representation of the current flowing through the shunt, **minimizing errors caused by temperature drift** and enhancing overall system reliability.

A key feature of this monitor is its **fixed gain of 20 V/V**, which simplifies design by providing a straightforward and linear relationship between the sensed differential voltage and the output. The output is referenced to ground, which facilitates easy interfacing with analog-to-digital converters (ADCs) or microcontroller units (MCUs) for further processing and system control. Furthermore, the device operates from a single power supply ranging from 3.0 V to 5.5 V, making it versatile for use in both 3.3 V and 5 V systems.

The **high common-mode rejection ratio (CMRR)** across a wide frequency range is another critical advantage, ensuring that noise and fluctuations on the high-voltage bus do not corrupt the measurement signal. This makes the AD8210WYRZ particularly suitable for noisy environments like motor control systems, battery management systems (BMS), and power supply units. Its robust performance guarantees that designers can achieve accurate current measurements for critical functions such as overload detection, power optimization, and system feedback control.

In summary, the AD8210WYRZ provides a robust, accurate, and simplified solution for high-side current sensing in demanding high-voltage applications.

**ICGOODFIND**

**Keywords:** High Common-Mode Voltage, Current-Shunt Monitor, Zero-Drift Amplifier, Common-Mode Rejection Ratio (CMRR), Differential Voltage Measurement.