INA185A2IDRLR

Overview

The INA185A2IDRLR is a precision, high-speed current sense amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an operating temperature range from -40°C to 125°C. The device features a fixed gain of 20 V/V with a maximum gain error of 0.2% and a gain error drift of 8 ppm/°C. Key electrical parameters include a maximum input offset voltage of 55 µV, a minimum common-mode rejection ratio (CMRR) of 96 dB, and a maximum quiescent current of 0.3 mA. It handles common-mode voltages from -0.2 V to 26 V and is available in a 6-pin SOT-563 package.

Feature Summary

• Bi-directional current sensing capability
• Low-side measurement support

Applications

• Portable equipment power management
• Battery-powered systems
• Industrial process control

Procurement Notes

Verify the specific suffix IDRLR corresponds to the tape-and-reel packaging format and the A1 grade accuracy level as defined in the official datasheet. Confirm that the component meets RoHS compliance standards for your region. Ensure the ordering part number matches the required gain configuration and package type before finalizing procurement to avoid integration errors.

Selection Notes

Select this component when a small footprint is critical due to its ultra-small SOT-563 package. It is suitable for applications requiring low quiescent current and moderate bandwidth. Verify that the 26 V common-mode voltage range and 20 V/V gain meet the specific circuit requirements. Consider the 0.2% gain error tolerance for precision needs.

Part Context

This device belongs to the INA185 family of current sense amplifiers designed for space-constrained applications. It offers a balance of precision and speed in a compact surface-mount package. The family supports various gain options and grades to accommodate different accuracy requirements in modern electronic designs.

Replacement Considerations

Check for other INA185 variants with different gain settings or package types if the exact specifications do not match. Verify pin compatibility and thermal characteristics when substituting with similar ultra-small current sense amplifiers.