Introducing the INA213AIRSWT Voltage Output, High-Side Measurement, Bi-Directional Zero-Drift Series Current Shunt Monitor from Texas Instruments

The INA213AIRSWT is a state-of-the-art current shunt monitor from Texas Instruments, designed to provide industry-leading precision and reliability for a wide range of applications. This device is part of the zero-drift series, offering bidirectional high-side current sensing that allows for accurate monitoring of both charging and discharging currents in battery-powered devices.

Key Features

• High Accuracy: The INA213AIRSWT boasts a precision zero-drift architecture, which ensures high accuracy over time and temperature. It provides a typical accuracy of 0.5% max over the full temperature range (-40°C to +125°C).
• Wide Common-Mode Range: This device operates over a common-mode voltage range from -0.3V to 26V, making it suitable for various applications, including those with higher supply voltages.
• Low Quiescent Current: With a quiescent current of only 100 µA (max), the INA213AIRSWT is an excellent choice for power-sensitive applications.
• Voltage Output: The output of the INA213AIRSWT is directly proportional to the voltage across the shunt resistor, allowing for easy interfacing with analog-to-digital converters (ADCs) or other monitoring circuitry.
• Configurable Gain Options: The device offers multiple gain options (50V/V, 100V/V, 200V/V, and 500V/V), providing flexibility in the selection of shunt resistor values and measurement resolution.

Applications

The INA213AIRSWT is ideal for a variety of applications that require precise current measurement, such as:

• Power management in portable devices
• Battery chargers and management systems
• Overcurrent protection
• Automotive and industrial systems

Robust Design

This current shunt monitor is housed in an ultra-small, leaded SOT-23 package that saves space in compact designs. Additionally, the INA213AIRSWT is designed to be robust against electromagnetic interference (EMI), enhancing system reliability in noisy environments.

With its combination of accuracy, low power, and versatility, the INA213AIRSWT from Texas Instruments is an excellent choice for designers looking to implement precise current sensing in their next project.