INA186A2IDCKR

Overview

The INA186A2IDCKR is a bidirectional, high-precision current-sense amplifier from Texas Instruments. It operates with a supply voltage range of 1.7 V to 5.5 V and supports common-mode voltages from -200 mV to 40 V. The device features a fixed gain of 50 V/V, a gain error of -0.04%, and an input offset voltage of -3 µV. Key electrical parameters include a bandwidth of 37 kHz, quiescent current of 90 µA, and CMRR of 150 dB. It functions within a temperature range of -40°C to +125°C and is housed in a SC-70-6 package.

Feature Summary

• Provides bidirectional current sensing capability for accurate measurement in both directions.
• Delivers high precision with ultra-low input offset voltage and minimal gain error.
• Supports wide common-mode voltage range extending below ground potential.

Applications

• Battery management systems
• Load switch control circuits
• Overcurrent protection designs

Procurement Notes

Verify the specific suffix IDCKR corresponds to the SC-70-6 package variant. Confirm that the A2 designation matches the required 50 V/V gain setting for your circuit design. Ensure compatibility with the specified 40 V common-mode voltage limit during operation.

Selection Notes

Select this component when bidirectional sensing is required alongside high accuracy. The low quiescent current makes it suitable for power-sensitive applications. Verify that the 37 kHz bandwidth meets the dynamic response requirements of the target system.

Part Context

This part belongs to the INA186 series of zero-drift current-sense amplifiers. It shares architectural similarities with other members like the INA186A1IDCKR but differs in fixed gain configuration. The series is designed for general-purpose high-precision current monitoring tasks.

Replacement Considerations

INA186A1IDCKR offers similar specifications with a different fixed gain value. Other INA186 variants may provide alternative packaging options or qualification levels such as automotive standards.