The INA199B3RSWT is a precision current shunt monitor from Texas Instruments that is designed to offer industry-leading performance for accurate current measurement in both high-side and low-side applications. This device is part of the INA199 series, which is known for its zero-drift architecture, providing excellent stability over time and temperature variations.

Key Features

• High Accuracy: The INA199B3RSWT boasts a gain error of only ±0.1% (max) and a gain drift of 10 ppm/°C (max), ensuring precise measurements for critical applications.
• Wide Common-Mode Range: With a common-mode voltage range from -0.3V to 26V, this device can be used in a variety of systems with different voltage levels.
• Bi-Directional Sensing: This current shunt monitor can measure current in both directions, making it ideal for applications like battery charging and discharging where current flow can change direction.
• Zero-Drift Architecture: The INA199B3RSWT features a zero-drift topology that minimizes offset drift and provides high accuracy over the entire temperature range.
• Low Quiescent Current: Its low quiescent current of 100 µA (max) makes it suitable for power-sensitive applications.
• Small Package: The device comes in an ultra-small, leaded SOT-23 package that is easy to integrate into space-constrained designs.

Applications

The INA199B3RSWT is versatile and can be used in a wide range of applications such as:

• Power management in portable devices
• Battery chargers
• Automotive systems
• Industrial control systems
• Telecommunication equipment

With its high level of precision and low power consumption, the INA199B3RSWT from Texas Instruments is an excellent choice for designers looking for a reliable current measurement solution. Its robust design and ease of use make it a go-to component for a wide array of electronic systems.