Maxim Integrated MAX471CPA Precision Current-Sense Amplifier

The MAX471CPA is a highly precise current-sense amplifier designed by Maxim Integrated to offer a comprehensive solution for current monitoring in a variety of applications. This precision current-sense amplifier is ideal for portable devices, battery management, power supply monitoring, and overcurrent protection circuits due to its compact size and high accuracy.

Key Features

• High Accuracy: The MAX471CPA features a low offset voltage and high accuracy, which makes it suitable for measuring small voltage drops across shunt resistors, enabling precise current measurement.
• Wide Supply Range: It operates over a wide supply range from 3V to 36V, making it versatile for use in both low and high voltage systems.
• Low Power Consumption: With its quiescent current of only 100µA, the MAX471CPA is optimized for power-sensitive applications, extending battery life in portable devices.
• Integrated Sense Resistor: The device includes an internal sense resistor, simplifying the design and reducing the number of external components required.
• High-Side Measurement: The ability to measure current at the high side of the load allows for the detection of ground faults and does not interfere with the ground path of the load.
• Output Voltage Proportional to Current: The output of the MAX471CPA is a voltage proportional to the current through the sense resistor, allowing for easy interfacing with ADCs or microcontrollers.

Applications

• Portable Devices
• Battery Management Systems
• Power Management
• Overcurrent Protection

The MAX471CPA is housed in an 8-pin DIP package, which is easy to integrate into a wide range of electronic circuits. Its robust design ensures reliable performance in challenging environments, while its precision makes it an essential component for critical applications where accurate current monitoring is paramount.

Whether it is for system diagnostics, power management, or safety-related functions, the MAX471CPA from Maxim Integrated stands out as a top choice for designers looking for a reliable and precise current-sense amplifier.