INA4181A4IPWR

Instrumentation, Op Amps, Buffer Amps Overview

The INA4181A4IPWR is a quad-channel, bidirectional current-sense amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 5.5 V and supports both high-side and low-side sensing configurations. The device features a gain bandwidth product of 350 kHz and an input offset voltage of 100 µV. It is housed in a 20-TSSOP package with a maximum operating temperature of 125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Supports bidirectional current sensing for both high-side and low-side applications
• Provides four independent current-sense channels in a single package
• Features low input offset voltage for improved measurement accuracy

Instrumentation, Op Amps, Buffer Amps Applications

• Automotive battery monitoring systems
• Industrial motor control circuits
• Power distribution units

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'A4' against official Texas Instruments documentation to confirm channel count and pinout compatibility. Ensure the 20-TSSOP package dimensions match your PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when multiple isolated or shared ground current measurements are required in a compact form factor. The quad-channel architecture reduces board space compared to discrete solutions. Verify that the 350 kHz bandwidth meets the dynamic response needs of your specific application circuitry.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INA4181 family of automotive-grade current-sense amplifiers. It offers a multi-channel alternative to single-channel devices like the INA181. The A4 suffix typically denotes the quad-channel variant within the series, distinguishing it from dual or single-channel versions.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Check for direct substitutes such as the INA4180A4IPWR if lower bandwidth is acceptable. Verify pin-to-pin compatibility with other quad-channel sense amplifiers from different manufacturers before substitution.