Maxim Integrated MAX4373TEUA High-Side Current-Sense Amplifier

The Maxim Integrated MAX4373TEUA is a high-precision, high-side current-sense amplifier designed to monitor the current flow in power management applications. This compact and efficient device is housed in a small 8-pin μMAX package, making it an ideal solution for space-constrained applications.

The MAX4373TEUA operates over a wide supply voltage range of 2.7V to 28V and is capable of sensing currents from a few milliamps up to the ampere level. Its high-side sensing capability allows for the measurement of current in systems where the ground is not accessible, providing a safer and more practical approach to current sensing in many applications.

This current-sense amplifier features a fixed gain of 20V/V, which simplifies the design process by eliminating the need for external gain-setting resistors. The high accuracy of the MAX4373TEUA is due to its low input offset voltage, which ensures precise current measurements even at low current levels.

The device offers a fast response time, making it suitable for overcurrent protection and load management in a variety of applications, including battery chargers, power management in portable devices, and industrial control systems. Its integrated voltage output easily interfaces with analog-to-digital converters (ADCs) or microcontrollers for further processing of the measured current data.

With its built-in ESD protection and wide operating temperature range from -40°C to +85°C, the MAX4373TEUA is designed to perform reliably in harsh environments. Its low quiescent current also helps in preserving battery life in portable applications.

Key features of the MAX4373TEUA include:

• High-side current sensing
• Fixed gain of 20V/V
• Wide supply voltage range: 2.7V to 28V
• Low input offset voltage
• Fast response time
• Integrated ESD protection
• Low power consumption
• Operational temperature range: -40°C to +85°C
• Compact 8-pin μMAX package

Overall, the MAX4373TEUA from Maxim Integrated is a robust and reliable choice for designers looking to implement current sensing in their systems with minimal design complexity and high accuracy.