INA4180A3QPWRQ1

Instrumentation, Op Amps, Buffer Amps Overview

The INA4180A3QPWRQ1 is a quad-channel, automotive-grade current-sense amplifier with a fixed gain of 100 V/V. It operates from a single 2.7-V to 5.5-V supply and supports common-mode voltages from –0.2 V to +26 V. Key electrical specifications include a maximum gain error of ±1%, an input offset voltage of ±150 µV at 0 V common-mode, and a bandwidth of 150 kHz. The device features a 14-pin TSSOP package and is qualified to AEC-Q100 Grade 1 standards for operation between –40°C and +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Quad-channel architecture providing four independent current-sensing circuits in a single package.
• Integrated matched resistor network ensures high accuracy and minimizes temperature drift.
• Capable of sensing currents on both high-side and low-side configurations within a wide common-mode range.

Instrumentation, Op Amps, Buffer Amps Applications

• Motor control
• Battery monitoring
• Power management
• Lighting control
• Overcurrent detection

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification and extended temperature range compliance. Ensure the 'A3' designation matches the required 100 V/V gain setting for your circuit design. Confirm the 'PWR' package code corresponds to the 14-pin TSSOP form factor required by your PCB layout constraints before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when multiple independent current channels are required in a compact footprint. The fixed 100 V/V gain suits applications requiring moderate signal amplification without external resistors. Consider the 150 kHz bandwidth for dynamic load monitoring. Verify that the 26 V common-mode limit accommodates the highest bus voltage present in the system during all operating conditions.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INAx180-Q1 family of low-cost, automotive current-sense amplifiers. It shares the same core topology and pinout compatibility as the single-channel INA180-Q1 and dual-channel INA2180-Q1 variants. The primary distinction lies in the channel count and the specific gain option selected via the middle letter suffix.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

INA4180A3QDRQ1 (SOIC-8 equivalent if pinout compatible)

Instrumentation, Op Amps, Buffer Amps FAQ

Does the INA4180A3QPWRQ1 support low-side current sensing?

Yes, the device supports both high-side and low-side current sensing configurations due to its wide common-mode voltage range.

What is the maximum common-mode voltage supported?

The device supports a common-mode voltage range from –0.2 V to +26 V, independent of the supply voltage.