INA180A2QDBVRQ1

Overview

The INA180A2QDBVRQ1 is a single-channel current sense amplifier from the Texas Instruments INA180 series, qualified to AEC-Q100 standards for automotive applications. It operates with a supply voltage range of 2.7 V to 5.5 V and supports a common-mode voltage from -200 mV to 26 V. The device features a fixed gain of 50 V/V, a gain bandwidth product of 210 kHz, and a maximum gain error of 0.1%. Key electrical parameters include an input offset voltage of 100 µV, input bias current of 80 µA, and quiescent current of 260 µA. It is housed in a SOT-23-5 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• High precision performance characterized by low input offset voltage and minimal gain error.
• Wide common-mode voltage range enabling detection across high-side or low-side configurations.

Applications

• Automotive battery management systems
• Motor control circuits
• Load switch current monitoring

Procurement Notes

Verify the specific suffix 'A2' confirms the fixed gain of 50 V/V, as other suffixes in the INA180 family denote different gains. Ensure the 'Q1' designation matches the required automotive grade specification. Confirm the 'DBVR' package code corresponds to the SOT-23-5 form factor required for the PCB layout. Cross-reference the manufacturer part number directly with official Texas Instruments documentation to avoid counterfeit components.

Selection Notes

Select this component when a fixed gain of 50 V/V is required for precise current measurement in automotive systems. The 210 kHz bandwidth suits applications requiring moderate speed without excessive power consumption. Consider the 260 µA quiescent current for battery-powered constraints. Verify that the 26 V common-mode limit accommodates the system's highest voltage node during operation.

Part Context

This device belongs to the INA180-Q1 family of precision current sense amplifiers designed for automotive use. It shares architectural similarities with the INA2180-Q1 and INA4180-Q1 but differs in specific gain settings and bandwidth characteristics. The family is engineered to provide accurate differential voltage amplification proportional to the sensed current across a shunt resistor.

Replacement Considerations

INA180A1QDBVRQ1 (Gain 20 V/V)

FAQ

What is the fixed voltage gain of the INA180A2QDBVRQ1?

The INA180A2QDBVRQ1 has a fixed internal gain of 50 V/V.

Does this amplifier support negative common-mode voltages?

Yes, it supports a common-mode voltage range starting from -200 mV.