INA4180A4QPWRQ1

Instrumentation, Op Amps, Buffer Amps Overview

The INA4180A4QPWRQ1 is a quad-channel, automotive-grade current-sense amplifier with a fixed gain of 200 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. The device features a maximum offset voltage of ±150 µV at 0 V common-mode and ±500 µV at 12 V. It offers a bandwidth of 105 kHz, a slew rate of 2 V/µs, and a quiescent current of up to 900 µA. Packaged in a 14-pin TSSOP, it is qualified to AEC-Q100 Grade 1 for operation between –40°C and +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Quad-channel architecture providing four independent low- or high-side current sensing paths within a single package.
• Integrated matched resistor network delivering a precise fixed gain of 200 V/V to minimize gain error and temperature drift.
• Wide common-mode input range extending from –0.2 V to +26 V, allowing operation independent of the power supply voltage.
• Automotive qualification compliant with AEC-Q100 standards, supporting extended temperature ranges and functional safety design.

Instrumentation, Op Amps, Buffer Amps Applications

• Motor control systems requiring multi-phase current monitoring
• Battery monitoring circuits in electric vehicles
• Power management units for distributed energy systems
• Overcurrent detection and protection logic

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'QPWRQ1' corresponds to the required automotive grade (Q1) and tape-and-reel packaging configuration. Confirm that the 200 V/V gain option matches the system's signal conditioning requirements before finalizing orders. Ensure the procurement channel provides valid traceability documentation for AEC-Q100 compliance.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when multiple independent current channels are needed in a compact form factor. The 200 V/V gain is suitable for applications detecting small voltage drops across low-value shunt resistors. Consider the 105 kHz bandwidth for fast transient response needs. Verify that the 26 V common-mode limit aligns with the highest bus voltage present in the target circuit design.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INAx180-Q1 family of low- and high-side voltage output current-sense amplifiers. It shares architectural similarities with the single-channel INA180-Q1 and dual-channel INA2180-Q1 but integrates four distinct amplifier channels. The family is designed for cost-optimized automotive applications requiring accurate current measurement across wide common-mode ranges.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes include other parts within the INAx180-Q1 family with different gain options, such as INA4180A3QPWRQ1 (100 V/V), INA4180A2QPWRQ1 (50 V/V), or INA4180A1QPWRQ1 (20 V/V). These share identical pinouts and packages but differ in internal gain settings.

Instrumentation, Op Amps, Buffer Amps FAQ

Can the INA4180A4QPWRQ1 be used for both high-side and low-side sensing?

Yes, the device supports both configurations due to its wide common-mode input range of –0.2 V to +26 V, which is independent of the supply voltage.

What is the maximum common-mode voltage supported by this amplifier?

The amplifier supports a common-mode voltage range from –0.2 V to +26 V.

How many channels does the INA4180A4QPWRQ1 contain?

It contains four independent current-sense amplifier channels.