INA215CIRSWR

Overview

The INA215CIRSWR is a current sense amplifier from the Texas Instruments INA21x family, designed for bidirectional zero-drift current shunt monitoring. It features a fixed gain of 75 V/V and operates with a supply voltage range of 2.7 V to 26 V. The device supports high common-mode voltages up to 12 V and offers a gain bandwidth product of 40 kHz. Key electrical specifications include an input offset voltage of 1 uV, a common-mode rejection ratio of 140 dB, and a maximum operating temperature of +125 C. It consumes a typical supply current of 100 uA and is housed in a SC-70-6 package.

Feature Summary

• Zero-drift architecture ensures low offset voltage for accurate sensing of small shunt voltage drops
• Capable of measuring both high-side and low-side currents with voltage output
• High common-mode rejection ratio maintains accuracy across varying common-mode conditions

Applications

• Battery management systems
• Industrial process control
• Power supply monitoring

Procurement Notes

Verify the specific suffix 'IRSWR' against the official datasheet to confirm package type and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm moisture sensitivity level handling procedures are followed upon receipt.

Selection Notes

Select this component when precise low-voltage drop measurement is required without external calibration. The fixed 75 V/V gain suits applications where moderate amplification is sufficient. Consider the SC-70-6 package size for space-constrained designs. Verify that the 12 V common-mode limit aligns with the system's bus voltage requirements.

Part Context

This part belongs to the INA21x series of current sense amplifiers, which utilize a chopper-stabilized architecture to minimize drift. The series provides multiple fixed gain options to accommodate different shunt resistor values. These devices are engineered for high accuracy in demanding industrial and automotive environments.

Replacement Considerations

Check for other members of the INA21x family with compatible gain and package. Verify pinout compatibility before substituting. Ensure replacement parts meet the same thermal and electrical performance standards.