Maxim Integrated MAX4172EUA-T High-Side Current-Sense Amplifier

The MAX4172EUA-T is a compact, precision, high-side current-sense amplifier from Maxim Integrated, designed for a wide range of applications requiring accurate current monitoring. This device operates over a wide supply voltage range from 3V to 36V, making it suitable for both low and high voltage systems. Its high-side monitoring capability allows for the measurement of current in systems where the ground is not accessible, or where isolation from the ground plane is necessary.

This current-sense amplifier is capable of sensing the voltage across shunt resistors over a wide range of common-mode voltages from 0V to 28V, independent of the supply voltage. This feature makes it ideal for battery management systems, power management, and overcurrent protection circuits in a variety of sectors including automotive, telecommunications, and industrial control systems.

The MAX4172EUA-T offers a high accuracy with a low input offset voltage, which ensures precise current measurement without significant error introduction. It also features a high input impedance, which minimizes the impact on the circuit being measured and allows the use of lower value shunt resistors to reduce power loss.

This device comes in a small 8-pin µMAX package, which is highly advantageous for space-constrained applications. The MAX4172EUA-T operates over the extended temperature range of -40°C to +85°C, providing reliable performance in harsh environments.

Key features of the MAX4172EUA-T include:

• Wide 3V to 36V Supply Voltage Range
• 0V to 28V Common-Mode Voltage Range
• Low 120μV (max) V_OS at +25°C
• High-Side Current Monitoring
• Low Input Offset Voltage
• High Input Impedance
• 8-Pin µMAX Package
• Extended -40°C to +85°C Operating Temperature Range

Overall, the MAX4172EUA-T from Maxim Integrated is a robust and reliable choice for designers and engineers looking to implement precise current sensing in their applications with minimal power loss and maximum accuracy.