INA2180A1QDGKRQ1

Overview

The INA2180A1QDGKRQ1 is an automotive-grade, dual-channel current-sense amplifier certified to AEC-Q100 standards. It features a fixed gain of 50 V/V and operates within a wide common-mode voltage range of -0.2V to +26V. The device supports supply voltages from 2.7V to 5.5V with a typical quiescent current of 355µA per channel. It offers a bandwidth of 350kHz and a slew rate of 2V/µs, housed in an 8-VSSOP package suitable for -40°C to +125°C operation.

Feature Summary

• Dual-channel architecture providing independent current monitoring capabilities within a single compact package.
• Wide common-mode voltage range enabling accurate sensing across high-side configurations without level shifting.
• Fixed 50 V/V gain design simplifying external component selection and reducing overall system cost.
• Automotive qualification ensuring reliability and performance consistency under harsh environmental conditions.

Applications

• Automotive battery management systems requiring precise cell or pack current monitoring
• Motor control circuits for phase current detection and protection
• On-board charger (OBC) input and output current sensing
• Electronic control unit (ECU) power distribution monitoring

Procurement Notes

Verify the specific suffix 'A1' confirms the 50 V/V fixed gain configuration, as other variants exist within the family. Ensure the QDGKRQ1 designation matches the required 8-VSSOP package and AEC-Q100 automotive grade. Confirm temperature range specifications align with the target application environment before finalizing procurement orders.

Selection Notes

Select this component when dual-channel isolation is required within a constrained board area. The fixed 50 V/V gain is optimal for applications where the shunt resistor voltage drop is small relative to the supply rail. Consider the 350kHz bandwidth limit for high-frequency switching noise filtering requirements compared to wider bandwidth alternatives.

Part Context

This part belongs to the INA2180 family of dual-channel current-sense amplifiers designed for cost-sensitive automotive applications. It complements single-channel devices like the INA180 by offering integrated dual monitoring. The QDGKRQ1 variant specifically denotes the automotive-qualified version with the specified gain and package type.

FAQ

What is the fixed voltage gain of the INA2180A1QDGKRQ1?

The INA2180A1QDGKRQ1 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 -0.2V up to +26V.