INA282AIDR

Current Regulation/Management Overview

The INA282AIDR is a bidirectional, low- and high-side voltage output current sense amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 18 V and supports a common-mode input voltage from -14 V to 80 V. The device features a fixed gain of 50 V/V and offers an accuracy of ±0.4%. It draws a typical quiescent current of 900 μA and provides a gain-bandwidth product of 10 kHz. Housed in an 8-pin SOIC package, it functions reliably across an extended temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bidirectional operation enables accurate monitoring of both positive and negative current flows for comprehensive power management.
• Wide common-mode voltage range allows flexible placement in either high-side or low-side circuit configurations.
• High precision with ±0.4% maximum error ensures reliable data acquisition in sensitive measurement applications.

Current Regulation/Management Applications

• Battery management systems requiring precise charge and discharge current monitoring
• Industrial motor control circuits for phase current sensing
• Power supply overcurrent protection and load regulation

Current Regulation/Management Procurement Notes

Verify the specific suffix 'IDR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the ±0.4% accuracy grade meets the system's tolerance requirements, as other grades may exist within the family. Ensure the SOIC-8 footprint matches the PCB design guidelines provided in the official datasheet to prevent soldering defects during reflow.

Current Regulation/Management Selection Notes

Select this component when bidirectional current sensing is mandatory within a wide common-mode voltage window up to 80 V. The fixed 50 V/V gain simplifies signal conditioning for downstream ADCs. Consider the 900 μA quiescent current against system power budgets. Verify thermal performance in the SOIC-8 package under expected ambient conditions and power dissipation levels.

Current Regulation/Management Part Context

This part belongs to the INA28x series of zero-drift current shunt monitors designed for high-precision applications. Unlike standard amplifiers, these devices integrate laser-trimmed resistors to achieve low offset voltage and high CMRR. The INA282 variant specifically targets applications needing bidirectional capability with high accuracy, distinguishing it from unidirectional counterparts in the broader portfolio.

Current Regulation/Management Replacement Considerations

The INA282AID is a tube-packaged version of the same electrical device; verify if reel handling is strictly required. No direct functional substitutes are confirmed in the provided documentation.