MAX4080TASA High-Side Current-Sense Amplifier

The MAX4080TASA from Maxim Integrated is a high-performance, high-side current-sense amplifier designed to monitor the current flow in power management systems. This precision current-sense amplifier is ideal for a wide range of applications including automotive, industrial, telecommunications, and consumer electronics.

Featuring a wide input common-mode voltage range of 4.5V to 76V, the MAX4080TASA is capable of functioning in high-voltage systems without the need for external components to shift the input range. This makes it extremely versatile for monitoring battery management systems, power supplies, and motor controls where the supply lines can vary significantly.

The device offers a fixed gain of 20V/V, providing an amplified output voltage directly proportional to the current passing through the sense resistor. This high gain accuracy enables precise current measurement which is crucial for system diagnostics and protection. Moreover, the MAX4080TASA has a low input offset voltage, which further enhances its accuracy and performance in measuring small load currents.

With its high bandwidth of 500kHz, the MAX4080TASA is capable of tracking fast transient events, ensuring that the system can respond quickly to changes in load current. Additionally, the device features a quiescent current of only 100µA, making it suitable for power-sensitive applications.

The MAX4080TASA is available in a compact 8-pin SO package, which allows for a small footprint on the PCB. Its robust design includes integrated fault protection against overvoltage conditions, which helps to safeguard the device and the system it monitors from unexpected voltage spikes.

Overall, the MAX4080TASA from Maxim Integrated offers a reliable and efficient solution for high-side current sensing with its wide voltage range, high accuracy, and robust protection features. It is a valuable component for designers looking to enhance the performance and safety of their power management systems.