INA213CIRSWR

Overview

The INA213CIRSWR is a single-channel, bidirectional current shunt monitor from the Texas Instruments INA21x family. It features a zero-drift architecture with low offset voltage, enabling accurate sensing of voltage drops across shunt resistors as low as 10mV full-scale. The device operates on a single supply voltage ranging from +2.7V to +26V and consumes a maximum of 100μA. It supports a common-mode voltage range of -0.3V to 26V. The component is housed in a UQFN-10 package and is rated for operation over an extended temperature range of -40°C to +125°C.

Feature Summary

• Zero-drift architecture ensures low input offset voltage for high-precision measurements
• Bidirectional sensing capability allows detection of voltage drops across shunts
• Operates independently of power supply voltage within specified limits

Applications

• Battery management systems
• Overcurrent protection circuits
• Load switch control

Procurement Notes

Verify the specific suffix 'CW' against official datasheets to confirm the exact gain setting and tolerance grade, as variations exist within the INA21x series. Ensure the UQFN-10 package matches the design footprint requirements. Confirm that the -40°C to +125°C operating temperature range aligns with the environmental conditions of the target application.

Selection Notes

Select this component when high accuracy is required at low voltage drops across the shunt resistor. The zero-drift technology minimizes calibration needs compared to standard amplifiers. Consider the UQFN-10 package size constraints and the need for bidirectional current monitoring. Verify that the supply voltage range fits the system's power rails.

Part Context

This part belongs to the INA21x family of current shunt monitors designed for precision applications. These devices are characterized by their ability to handle high common-mode voltages while measuring small differential signals. The family offers various gain options and packages to suit different board space and accuracy requirements.

Replacement Considerations

Check for other members of the INA21x family with compatible gain settings and package types. Verify if alternative parts offer similar zero-drift performance and common-mode voltage ranges.