Linear Technology's LT1787CS8 Precision High Side Current Sense Amplifier

The LT1787CS8 is a high-performance current sense amplifier from Linear Technology, designed to provide precise current measurement in a variety of applications. This integrated circuit is housed in an 8-lead SOIC package, making it suitable for space-constrained applications while offering robust features for accurate current monitoring.

Key Features:

• Precision Current Sensing: The LT1787CS8 is engineered to accurately sense current from the high side, which means it measures the current flowing through a shunt resistor placed in the supply line. This high-side sensing is critical for applications where ground disturbance cannot be tolerated.
• Wide Input Common Mode Range: It operates over a wide input common-mode range of 2.5V to 80V, catering to systems that experience wide supply voltage variations. This feature makes it extremely versatile for use in automotive, industrial, and telecommunication systems.
• Low Current Consumption: With a quiescent current of just 60µA (typical), the LT1787CS8 is an energy-efficient solution for portable and battery-powered applications, where power conservation is essential.
• High Accuracy: The device offers a maximum input offset voltage of 500µV, enabling high-accuracy current measurement without significant error contribution from the amplifier itself.

Applications:

• Battery monitoring
• Power management systems
• Automotive systems
• Portable instruments
• Telecommunication infrastructure

The LT1787CS8 also features a gain bandwidth product of 200kHz and can drive capacitive loads up to 5000pF, which allows for a flexible range of filter options to reduce noise. Its robust design includes protection against reverse battery conditions, adding to the reliability of the system in which it is implemented.

Whether you are designing a sophisticated battery management system or simply need to monitor current in a high-voltage application, the LT1787CS8 presents itself as a compact, precise, and reliable solution from Linear Technology, a trusted name in high-performance analog integrated circuits.