INA202AIDR

Current Regulation/Management Overview

The INA202AIDR is a high-side current shunt monitor manufactured by Texas Instruments in an 8-SOIC surface-mount package. It operates with a supply voltage range of 2.7 V to 18 V and draws 1.85 mA of quiescent current. The device supports input voltages from -16 V to 80 V, ensuring compatibility with various power systems. It provides an accuracy of 3.5% and functions reliably within a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• High-side measurement capability for monitoring current flowing through a shunt resistor connected to the positive supply rail.
• Wide common-mode input voltage range allowing operation across diverse system architectures and negative voltage conditions.
• Rail-to-rail output providing a linear voltage response proportional to the differential input voltage across the shunt.

Current Regulation/Management Applications

• Industrial process control loop monitoring
• Battery management systems
• Power supply overcurrent protection

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 3.5% accuracy specification meets the precision requirements of the target application circuit. Ensure the SOIC-8 footprint matches the PCB layout design rules and thermal management constraints defined in the mechanical outline drawing.

Current Regulation/Management Selection Notes

Select this component when high-side current sensing is required with a wide common-mode voltage range extending into negative values. The device is suitable for applications needing moderate accuracy without the complexity of digital interfaces. Consider the 1.85 mA supply current for battery-powered designs where low quiescent consumption is critical but absolute minimum power is not the primary constraint.

Current Regulation/Management Part Context

This part belongs to the INA202 series of current shunt monitors from Texas Instruments. It is functionally related to the INA200 and INA201, offering similar high-side monitoring capabilities. The 'A' designation indicates a specific accuracy grade, while 'IDR' specifies the industrial temperature range and reel packaging configuration.

Current Regulation/Management Replacement Considerations

The INA202AID is listed as obsolete with the INA202AIDR identified as the manufacturer-recommended replacement. Verify pinout compatibility and electrical parameter equivalence before substituting older tube-packaged variants with the current reel version.