The INA139 from Texas Instruments is a precision current sense monitor designed to offer a simple and efficient solution for applications requiring current measurement. This high-side current sense monitor is capable of measuring voltage across shunts at common-mode voltages from -16V to +80V, independent of the supply voltage.

Key Features

• Wide Common-Mode Range: The INA139 operates over a wide common-mode voltage range, making it versatile for use in various systems.
• High Accuracy: With its precision analog design, the INA139 provides accurate current sensing which is critical for system control and protection.
• Low Quiescent Current: The device features low quiescent current, helping to reduce power consumption and improve efficiency in power-sensitive applications.
• Single Resistor Gain Set: The gain of the INA139 is set with a single external resistor, which provides flexibility and simplicity in setting the desired gain value.

Applications

The INA139 is suitable for a wide range of applications, including:

• Battery management systems
• Power management
• Overcurrent protection
• Automotive systems
• Telecommunications infrastructure

Technical Specifications

Conclusion

The INA139 from Texas Instruments is an ideal choice for designers looking for a reliable, high-performance current sense monitor. Its wide common-mode range, high accuracy, and low power consumption make it a versatile component for a multitude of applications requiring precise current measurement.