INA215CQDCKRQ1

Overview

The INA215CQDCKRQ1 is an automotive-grade, bidirectional current shunt monitor manufactured by Texas Instruments. It features a fixed gain of 75 V/V and operates with a supply voltage range of 2.7 V to 26 V. The device supports high-side or low-side measurements with a common-mode voltage range of -0.3 V to 26 V. Key electrical parameters include a bandwidth of 40 kHz, input offset voltage of 1 µV, and quiescent current of 100 µA. It provides a voltage output proportional to the shunt voltage drop.

Feature Summary

• Bidirectional current sensing capability for both high-side and low-side configurations
• Zero-drift architecture ensuring low offset voltage for accurate measurement at small shunt voltages
• Wide common-mode voltage range supporting operation across various system power rails

Applications

• Automotive battery monitoring systems
• Motor control current sensing
• Industrial load protection circuits

Procurement Notes

Verify the specific suffix 'C' indicates the designated gain error grade against the official datasheet. Confirm AEC-Q100 qualification status for the intended automotive application environment. Ensure the SC-70-6 package matches the PCB footprint requirements.

Selection Notes

Select this component when a fixed 75 V/V gain is required for precise current monitoring in automotive environments. Consider the 1 µV offset voltage for applications requiring accuracy at low shunt voltage drops. Evaluate the 100 µA supply current against total system power budget constraints.

Part Context

This part belongs to the INA21x family of zero-drift current shunt monitors. These devices are designed to measure voltage drops across shunt resistors with high precision. The family offers various gain options and packaging styles to suit different board space and accuracy requirements in industrial and automotive sectors.