INA213AIRSWT

Overview

The INA213AIRSWT is a precision current shunt monitor manufactured by Texas Instruments, belonging to the INA210 family. 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 specifications include a maximum input offset voltage of 5 µV, a common-mode rejection ratio of 140 dB, and a gain error of 0.02%. The device supports bidirectional current sensing with a common-mode voltage up to 12 V and draws a typical operating supply current of 100 µA. It is housed in a UQFN-10 package and functions reliably across an industrial temperature range from -40°C to +125°C.

Feature Summary

• Provides high-precision bidirectional current monitoring with ultra-low input offset voltage for accurate low-side and high-side measurements.
• Delivers exceptional common-mode rejection performance to maintain signal integrity in noisy environments.
• Features a fixed internal gain that simplifies circuit design while ensuring consistent measurement accuracy.

Applications

• Industrial process control systems requiring precise current feedback
• Battery management systems for energy monitoring
• Overcurrent protection circuits in power distribution units

Procurement Notes

Verify the specific suffix 'AW' against the official datasheet to confirm the exact temperature grade and packaging configuration. Confirm availability status as product lifecycle stages may affect long-term sourcing. Ensure the UQFN-10 footprint matches your PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 50 V/V gain is required for direct interface with ADCs or microcontrollers. Compare against INA210 (200 V/V) or INA214 (100 V/V) based on desired sensitivity. Consider the 140 dB CMRR for applications with high common-mode noise. Verify that the 12 V common-mode limit aligns with your system's bus voltage.

Part Context

This part belongs to the INA21x series of zero-drift current sense amplifiers. These devices are designed for high-accuracy applications where traditional amplifiers might suffer from drift errors. The series offers various gain options to suit different shunt resistor values and voltage ranges, providing a scalable solution for modern power management designs.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as INA210AIRSWT or INA214AIRSWT, noting that gain differences will require recalibration. Verify if newer revisions of the INA21x series offer improved availability or updated packaging options while maintaining identical electrical characteristics.