Maxim Integrated MAX4090AAXT High-Side Current-Sense Amplifier

The Maxim Integrated MAX4090AAXT is a precision, high-side current-sense amplifier designed to monitor current flow in power management systems. This compact and efficient device is ideal for a wide range of applications, including battery management, overcurrent protection, and power monitoring in automotive, industrial, and communication systems.

The MAX4090AAXT operates over a wide supply voltage range from 2.7V to 28V, making it suitable for both low and high voltage systems. It features a high voltage gain of 100V/V, allowing for precise current measurement even at low sense voltages. This high-side current-sense amplifier is capable of detecting current via a sense resistor placed in the power supply's high side, which allows for ground-referenced loads without disrupting the ground path.

One of the key advantages of the MAX4090AAXT is its low input offset voltage, which ensures accurate current measurement and minimizes error. Additionally, the device boasts a fast response time, which is critical for systems that require quick reaction to overcurrent conditions. With its wide bandwidth, the MAX4090AAXT can accurately track rapid changes in load current, providing real-time monitoring capabilities.

The MAX4090AAXT is offered in a small 6-pin SOT23 package, making it an excellent choice for space-constrained applications. Its compact size does not compromise performance or reliability, as it is designed to operate over the extended industrial temperature range of -40°C to +125°C, ensuring functionality in harsh environments.

For designers looking for a robust and precise current-sense solution, the Maxim Integrated MAX4090AAXT offers a blend of features that make it a versatile choice for a multitude of applications. Its ease of use, coupled with high accuracy and reliability, ensures that it can meet the stringent requirements of modern electronic systems.

Overall, the MAX4090AAXT is an excellent choice for designers who require a high-performance current-sensing solution in a compact package, with the reliability and quality that Maxim Integrated is known for.