INA271AID

Current Regulation/Management Overview

The INA271AID is a high-speed, voltage-output current shunt monitor manufactured by Texas Instruments. It supports both low-side and high-side measurements with a common-mode input voltage range of -16V to 80V. The device operates on a single supply voltage between 2.7V and 18V. It features a fixed gain of 20 V/V and a bandwidth of 130kHz. Designed for precision applications, it offers an accuracy of 1% and functions within a temperature range of -40°C to +125°C in an 8-pin SOIC package.

Current Regulation/Management Feature Summary

• Supports both low-side and high-side current sensing configurations
• Features simplified filter inputs for easy noise reduction
• Provides high-speed performance with a 130kHz bandwidth
• Delivers accurate voltage output proportional to shunt voltage

Current Regulation/Management Applications

• Industrial process control systems
• Power supply monitoring circuits
• Overcurrent protection designs
• Battery management systems

Current Regulation/Management Procurement Notes

Verify the specific suffix ID indicates the 8-SOIC package variant when sourcing. Confirm the manufacturer source is Texas Instruments or authorized Burr-Brown distributors for legacy consistency. Ensure the operating environment stays within the specified -40°C to +125°C range. Check for RoHS compliance documentation if required for your assembly process. Validate that the 20 V/V gain matches your system's signal conditioning requirements before finalizing procurement.

Current Regulation/Management Selection Notes

Select this component when high-side sensing up to 80V is required without external level shifting. The fixed 20 V/V gain simplifies resistor network design compared to programmable alternatives. Consider the 130kHz bandwidth sufficient for most industrial monitoring tasks. The wide common-mode range accommodates various bus voltages. Ensure the SOIC-8 footprint fits your PCB layout constraints.

Current Regulation/Management Part Context

This part belongs to the INA271 family of current shunt monitors. It is often compared with the INA270 series, which offers lower bandwidth but similar functionality. The INA271A-Q1 variant provides automotive qualification for harsher environments. The ID suffix specifically denotes the plastic small-outline package (SOIC) version suitable for surface-mount assembly.

Current Regulation/Management Replacement Considerations

INA271AIDR is the tape-and-reel equivalent of the tube-packed ID variant. INA271AIDG4 is the lead-free version of the same package. For automotive applications, consider the INA271A-Q1 series. Direct pin-to-pin replacements from other manufacturers require careful verification of gain and bandwidth specifications.