INA2180A2QDGKRQ1

Overview

The INA2180A2QDGKRQ1 is a dual-channel current-sense amplifier from Texas Instruments, designed for automotive applications. It features a fixed gain of 50 V/V and operates within a supply voltage range of 2.7V to 5.5V. The device supports bidirectional current sensing with a wide common-mode voltage range extending from -0.2V to +26V. Key electrical specifications include a bandwidth of 350kHz, a maximum input offset voltage of 100µV, and a typical quiescent current of 355µA per channel. It is housed in an 8-VSSOP package and qualified to AEC-Q100 standards.

Feature Summary

• Dual-channel architecture providing independent current monitoring capabilities within a single compact package.
• Bidirectional sensing functionality allowing detection of current flow in both directions across the shunt resistor.
• Wide common-mode voltage range enabling operation in high-side configurations with varying system voltages.

Applications

• Automotive battery management systems
• Motor control current monitoring
• On-board charger (OBC) circuits

Procurement Notes

Verify the specific gain code suffix in the part number to ensure the correct amplification factor matches the design requirements. Confirm that the component meets AEC-Q100 qualification standards for the intended automotive application environment. Check the package marking and datasheet revision history to ensure compatibility with existing PCB footprints and manufacturing processes.

Selection Notes

Select this component when dual-channel current monitoring is required in space-constrained automotive designs. The fixed 50 V/V gain simplifies external resistor selection compared to programmable gain alternatives. Ensure the system's common-mode voltage remains within the specified -0.2V to +26V range to maintain accurate performance and prevent device damage during operation.

Part Context

This device belongs to the INA2180 family of current-sense amplifiers, which are engineered for precision measurement in industrial and automotive settings. The 'Q' designation indicates automotive qualification, while the 'A2' suffix specifies the 50 V/V gain variant. It complements other sensors in power management subsystems by providing reliable feedback for protection and control loops.

Replacement Considerations

Direct replacements may include other AEC-Q100 qualified dual-channel current sense amplifiers with similar gain and package dimensions. Verify pin-to-pin compatibility and ensure that the alternative device's common-mode voltage range and bandwidth meet or exceed the original specifications for the target application.