INA213AIRSWR

Overview

The INA213AIRSWR is a zero-drift current shunt monitor manufactured by Texas Instruments, belonging to the INA210 series. It features a fixed gain of 50 V/V and operates within a supply voltage range of 2.7 V to 26 V. Key electrical parameters include a maximum input offset voltage of 5 µV, an input bias current of 60 nA, and a common-mode rejection ratio of 140 dB. The device supports bidirectional current sensing with a common-mode voltage range extending from -0.2 V to 40 V. It functions reliably across an industrial temperature range of -40°C to +125°C and consumes a typical operating supply current of 80 µA.

Feature Summary

• Zero-drift architecture ensures high precision and stability over temperature variations
• High common-mode rejection ratio for accurate measurements in noisy environments
• Wide common-mode voltage range supporting high-side and low-side monitoring
• Low power consumption suitable for battery-operated applications

Applications

• Industrial process control systems requiring precise current monitoring
• Battery management systems for electric vehicles and portable devices
• Overcurrent protection circuits in power distribution units
• Smart energy metering equipment

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when ordering. Confirm the 'AI' designation corresponds to the automotive-grade or extended industrial temperature range variant as per the official datasheet. Ensure compatibility with the UQFN-10 package footprint during PCB layout. Cross-reference the manufacturer part number against the latest TI documentation to confirm availability status and any potential obsolescence notices.

Selection Notes

Select this component when a fixed gain of 50 V/V is required for current sensing applications. The zero-drift technology makes it suitable for high-precision measurements where offset voltage drift is critical. Consider the wide common-mode voltage range if operating in high-side configurations with voltages up to 40 V. Evaluate the low supply current requirement against system power budget constraints.

Part Context

This device is part of the INA210 family of current shunt monitors, which includes variants with different fixed gains such as 20 V/V (INA210), 50 V/V (INA213), 100 V/V (INA212), and 200 V/V (INA214). All members share the same UQFN-10 package and core zero-drift amplifier architecture, differing primarily in their internal gain settings and corresponding output voltage scaling.

Replacement Considerations

Compatible substitutes within the same family include INA210AIRSWR, INA212AIRSWR, and INA214AIRSWR, provided the gain difference is acceptable for the application design.