The MAX4378FASD+ is a precision, high-side current-sense amplifier from Maxim Integrated designed to monitor the current flowing through a shunt resistor placed in the path of the high-side power supply line. This device is ideal for a wide range of applications, including power management, battery charging, and load detection in portable devices, computers, and industrial systems.

Key Features

• Wide Supply Voltage Range: Operates from 2.85V to 28V, accommodating various system voltages.
• High Accuracy: Offers low input offset voltage and high gain accuracy, ensuring precise current measurement.
• Low Quiescent Current: Consumes minimal power with a low supply current, making it suitable for battery-powered applications.
• Multiple Gain Options: Available in fixed gain versions, allowing designers to choose the appropriate gain for their specific application needs.
• High-Side Measurement: Allows for the detection of load current without interfering with the ground path, providing safer and more accurate readings.

Applications

• Battery-powered devices
• Notebook computers
• Telecommunications equipment
• Industrial monitoring systems

Technical Specifications

• Package: 8-Pin SOIC (FASD)
• Temperature Range: -40°C to +85°C operational range, suitable for industrial environments.
• Output: The device provides a voltage output that is proportional to the current passing through the shunt resistor, facilitating easy interfacing with ADCs or microcontrollers.

The MAX4378FASD+ current-sense amplifier is a compact and efficient solution for current monitoring applications. Its small footprint and high level of integration make it an excellent choice for space-constrained designs, while its robust feature set ensures reliable and accurate performance across a broad range of operating conditions. Maxim Integrated's commitment to quality and performance makes the MAX4378FASD+ a standout choice for designers looking to add current sensing to their next project.