INA213BIRSWR

Overview

The INA213BIRSWR is a bidirectional, zero-drift current-shunt monitor manufactured by Texas Instruments. It features a fixed gain of 50 V/V and operates with a supply voltage range of 2.7 V to 26 V. The device supports a common-mode voltage range from -0.3 V to 26 V, enabling high-side or low-side measurements. Key electrical specifications include a maximum input offset voltage of 5 µV, a gain error of 0.5%, and an operating supply current of 115 µA. It functions within a temperature range of -40°C to +125°C and is housed in a UQFN-10 package.

Feature Summary

• Bidirectional measurement capability for both high-side and low-side current sensing applications
• Zero-drift architecture ensures low input offset voltage for accurate detection of small shunt voltage drops
• Wide common-mode voltage range allows operation independent of the system power supply voltage

Applications

• Battery management systems requiring precise current monitoring
• Industrial process control loops for load regulation
• Overcurrent protection circuits in power distribution units

Procurement Notes

Verify the specific suffix 'IRSWR' against the official datasheet to confirm the reel quantity and tape-and-reel packaging configuration. Ensure the component meets RoHS compliance requirements for your target market. Confirm that the UQFN-10 footprint matches your PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when high precision is required for low-voltage shunt monitoring. The 50 V/V gain is suitable for detecting millivolt-level signals. Consider the 115 µA supply current for battery-powered designs. Verify that the -0.3 V to 26 V common-mode range covers the maximum bus voltage in the application environment.

Part Context

This part belongs to the INA21x series of voltage-output, bi-directional, zero-drift current-shunt monitors. The series provides multiple fixed gain options to accommodate different shunt resistor values and signal levels. These devices are designed for applications demanding high accuracy over wide temperature ranges without external calibration.

Replacement Considerations

Check the INA213BIDCKR variant for identical electrical performance in a different package type. Other members of the INA21x family may offer different gains or bandwidths but share similar interface characteristics.