Maxim Integrated MAX4376FASA+T High-Side Current-Sense Amplifier

The MAX4376FASA+T from Maxim Integrated is a high-precision, high-side current-sense amplifier designed to monitor current in battery management systems, power management applications, and portable devices. It operates by measuring the voltage drop across a shunt resistor placed in the path of the current flow, enabling the monitoring of the current without interrupting the circuit.

This device is specifically engineered to offer a wide input common-mode range from 0V to +28V, making it suitable for a variety of systems that operate within these voltage levels. Its high accuracy and low offset voltage facilitate precise current measurement, which is critical for effective power consumption analysis and management.

The MAX4376FASA+T comes in a small 8-pin SOIC package, which is ideal for space-constrained applications. It also features a low supply current of 100µA, contributing to the overall energy efficiency of the system in which it is used. The amplifier provides a gain of 20V/V, which allows for the amplification of the voltage across the shunt resistor to a level that can be easily measured by an analog-to-digital converter (ADC).

With its integrated precision voltage reference and an operating temperature range of -40°C to +125°C, the MAX4376FASA+T ensures reliable performance in a wide range of environments and applications. The device is also equipped with a high-speed response, making it capable of detecting fast transient events that may occur in the system.

Key features of the MAX4376FASA+T include:

• Wide Input Common-Mode Range: 0V to +28V
• Low Offset Voltage
• High Accuracy
• Low Supply Current: 100µA
• Gain of 20V/V
• Operating Temperature Range: -40°C to +125°C
• Integrated Precision Voltage Reference
• Fast Response Time
• Compact 8-Pin SOIC Package

The MAX4376FASA+T is an ideal choice for designers looking to implement current sensing in their systems with a reliable, accurate, and space-efficient component. Its robust performance characteristics make it well-suited for a wide range of industrial, automotive, and consumer applications where precise current monitoring is essential.