Maxim Integrated MAX4374TEUB High-Side Current-Sense Amplifier

The MAX4374TEUB from Maxim Integrated is a sophisticated high-side current-sense amplifier designed to provide accurate current measurement in a wide range of applications. This compact device is housed in a space-saving 10-pin μMAX package, making it an ideal choice for space-constrained applications where precise current monitoring is essential.

Featuring a high accuracy of ±1.5% at room temperature, the MAX4374TEUB ensures reliable performance in various systems. It operates over a broad supply voltage range from 2.7V to 28V, allowing for flexibility in design and compatibility with numerous power rails. The device is capable of sensing currents from 100µV to 100mV full-scale, which translates to a broad range of load currents depending on the sense resistor value used.

One of the key advantages of the MAX4374TEUB is its high-side sensing capability, which allows for the measurement of current in systems where the ground is not available, or isolation from the ground is desired. This feature is particularly useful in battery-powered applications, where it enables the monitoring of battery discharge without interfering with the ground path.

The amplifier's output is a voltage proportional to the current passing through the sense resistor, which can be easily interfaced with analog-to-digital converters (ADCs) or microcontrollers for further processing. This makes the MAX4374TEUB a versatile component for applications such as battery management, overcurrent protection, and power management systems.

To enhance system reliability, the device includes an integrated 140kHz filter that reduces the impact of high-frequency noise on the output signal. Additionally, the MAX4374TEUB features a low quiescent current, making it suitable for power-sensitive applications.

In summary, the MAX4374TEUB from Maxim Integrated is a reliable and precise high-side current-sense amplifier that offers excellent performance in a compact package. Its wide voltage range, high accuracy, and integrated noise filtering make it an excellent choice for designers looking to implement current sensing in their next project.