INA4180A1QPWRQ1

Instrumentation, Op Amps, Buffer Amps Overview

The INA4180A1QPWRQ1 is a quad-channel, automotive-grade current-sense amplifier from Texas Instruments. It features a fixed gain of 20 V/V and supports a common-mode voltage range from -0.2 V to +26 V. The device operates on a single supply voltage between 2.7 V and 5.5 V. Key electrical specifications include a maximum offset voltage of ±150 µV at zero common-mode voltage, a bandwidth of 350 kHz, and a quiescent current of up to 900 µA. It is housed in a 14-pin TSSOP package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• AEC-Q100 qualified for automotive applications with extended temperature range
• High bandwidth of 350 kHz and fast slew rate for rapid response
• Wide common-mode input range supporting high-side and low-side sensing
• Integrated matched resistor network for minimized gain error and drift

Instrumentation, Op Amps, Buffer Amps Applications

• Motor control systems
• Battery monitoring circuits
• Power management units
• Overcurrent detection protection

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification and the 'A1' designation ensures the 20 V/V gain setting. Confirm the 'PWR' suffix corresponds to the 14-pin TSSOP package type required for your PCB layout. Ensure the component meets the specified operating temperature range of -40°C to +125°C for your application environment.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when multiple independent current channels are required within a single package footprint. The 20 V/V gain option is suitable for applications requiring moderate signal amplification without external precision resistors. Consider the 900 µA quiescent current draw against system power budgets compared to single-channel alternatives if channel count is not a constraint.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INAx180-Q1 family of low-cost, automotive current-sense amplifiers. It shares architectural similarities with the single-channel INA180-Q1 and dual-channel INA2180-Q1 but integrates four independent amplifiers. The family utilizes a specialized topology allowing operation with common-mode voltages exceeding the supply rail.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

INA4180A2QPWRQ1 (50 V/V gain), INA4180A3QPWRQ1 (100 V/V gain), INA4180A4QPWRQ1 (200 V/V gain). Non-automotive equivalents include the INA4180A1IPWR.