INA183A2IDBVR

Overview

The INA183A2IDBVR is a high-precision, bidirectional current sense amplifier from Texas Instruments. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports a common-mode voltage range of -0.2 V to +26 V. The device features a fixed gain of 50 V/V with an integrated matched resistor network to minimize gain error and temperature drift. Key electrical specifications include a maximum input offset voltage of 150 µV, a typical common-mode rejection ratio (CMRR) of 100 dB, and a quiescent current of 260 µA. It is housed in a compact SOT-23-6 package suitable for surface-mount applications.

Feature Summary

• Bidirectional current sensing capability allows detection of positive and negative currents relative to ground.
• Integrated matched resistor network provides fixed gain to ensure high accuracy and stability.
• Wide common-mode voltage range enables operation independent of the supply voltage level.

Applications

• Industrial process control systems
• Power supply monitoring circuits
• Battery management systems

Procurement Notes

Verify the specific suffix IDBVR corresponds to the SOT-23-6 package and tape-and-reel delivery format. Confirm the A2 grade matches the required precision specifications for your design. Ensure compatibility with the target operating temperature range of -40°C to +125°C. Cross-reference the manufacturer part number with official distributor catalogs to validate authenticity and current availability status before procurement.

Selection Notes

Select this component when bidirectional sensing is required within a 26 V common-mode window. The fixed 50 V/V gain suits applications needing moderate signal amplification without external resistors. Consider the 260 µA quiescent current for low-power constraints. Evaluate the SOT-23-6 footprint against PCB space limitations. Compare input offset voltage and CMRR requirements against other series members if higher precision or different gain factors are needed.

Part Context

This device belongs to the INA18x family of current sense amplifiers designed for cost-sensitive, high-accuracy applications. It shares architectural similarities with the INA181 but offers specific gain and performance characteristics tailored for general-purpose current monitoring. The family emphasizes ease of use through integrated gain networks and robust common-mode handling capabilities across various industrial and commercial environments.

Replacement Considerations

INA181A2IDBVR serves as a functional substitute within the same series, offering similar bidirectional sensing and fixed gain characteristics. Verify pinout compatibility and exact electrical parameter tolerances before substitution. Other INA18x variants may require gain adjustment or offer different bandwidth specifications.