Maxim Integrated MAX4038EUA+ High-Side Current-Sense Amplifier

The MAX4038EUA+ from Maxim Integrated is a precision, high-side current-sense amplifier that is ideal for a wide range of applications requiring accurate current monitoring. This compact and efficient device is designed to monitor the current flowing through a shunt resistor placed in the high side of a power supply, allowing users to measure current without interrupting the ground path of the load.

The MAX4038EUA+ operates over a wide supply voltage range from 2.7V to 28V, which makes it suitable for both low and high voltage systems. Its input common-mode voltage range extends from 1.2V up to 28V, independent of the supply voltage, providing designers with the flexibility to use it in multiple applications without the need for level shifting or external components.

One of the key features of this current-sense amplifier is its high accuracy. It boasts a low input offset voltage of only 250µV (max) and a gain error of less than 0.5% (max), ensuring precise current measurement across the entire operating temperature range of -40°C to +85°C. This precision is critical in applications where current monitoring is vital for performance and safety, such as battery management systems, power management, and overcurrent protection circuits.

The device comes in a space-saving 8-pin µMAX package, which is highly advantageous for designs where PCB real estate is at a premium. Additionally, the MAX4038EUA+ features a low quiescent current of 100µA (max), making it an energy-efficient choice for portable and battery-powered applications.

With its high-accuracy, wide voltage range, and compact form factor, the MAX4038EUA+ from Maxim Integrated is an excellent choice for engineers and designers looking to implement reliable current-sensing solutions in their projects.

Key features of the MAX4038EUA+ include:

• Wide 2.7V to 28V operating supply voltage range
• 1.2V to 28V input common-mode voltage range
• High accuracy with 250µV (max) input offset voltage
• Low gain error of less than 0.5% (max)
• Low 100µA (max) quiescent current
• Compact 8-pin µMAX package
• Operating temperature range of -40°C to +85°C

Whether for power monitoring, battery management, or safety systems, the MAX4038EUA+ is a robust and reliable solution that offers precise current sensing capabilities in a variety of electronic applications.