Maxim Integrated MAX4172ESA+TG068 Current-Sense Amplifier

The MAX4172ESA+TG068 from Maxim Integrated is a high-performance, low-cost, precision current-sense amplifier that is ideal for a wide range of applications. This device is designed to accurately monitor the current flow in power management systems, battery chargers, and overcurrent protection circuits. With its small size and ease of use, the MAX4172ESA+TG068 is a perfect choice for portable devices, consumer electronics, and industrial control systems.

The MAX4172ESA+TG068 operates from a single 3V to 36V supply or a ±1.5V to ±18V dual supply, providing versatility for different power environments. It features a wide input common-mode range from -0.1V to +36V, which is independent of the supply voltage, allowing the device to sense currents in systems with high common-mode voltages, such as in high-side current-sensing configurations.

This current-sense amplifier boasts a low input offset voltage, which enables precise current measurement even at very low current levels. With a typical offset voltage of just 250µV and an offset drift of 3µV/°C, the MAX4172 ensures accurate and stable current measurements over the entire operating temperature range.

The MAX4172ESA+TG068 comes in a compact 8-pin SOIC package, which is space-saving and suitable for high-density circuit boards. Its high accuracy and bandwidth make it an excellent choice for closed-loop control systems and power management applications where precise current control is crucial.

Additional features of the MAX4172ESA+TG068 include a 500kHz bandwidth, which is beneficial for fast transient response, and a low supply current of just 100µA, which helps to conserve power in battery-operated devices. The device also offers a gain option of 20V/V, which provides flexibility in the design of current-sensing circuits without the need for external gain-setting components.

In summary, the MAX4172ESA+TG068 from Maxim Integrated is a reliable and efficient solution for current-sensing applications that demand high accuracy, wide bandwidth, and low power consumption. Its robust design and operational flexibility make it an excellent choice for designers looking to enhance the performance of their power management systems.