INA199B2RSWT

Current Regulation/Management Overview

The INA199B2RSWT is a bi-directional current sense amplifier from Texas Instruments featuring zero-drift architecture. It operates within a supply voltage range of 2.7 V to 26 V and supports bidirectional current measurement with high-side or low-side sensing capabilities. The device offers a fixed gain of 20 V/V, ensuring accurate signal amplification for shunt-based applications. Key electrical specifications include a maximum input offset voltage of 5 µV, a common-mode rejection ratio of 120 dB, and an input bias current of 28 µA. It functions reliably across an extended temperature range from -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bi-directional operation enables precise current monitoring in both directions
• Zero-drift technology minimizes offset voltage and drift over time
• Supports high-side and low-side sensing configurations
• High common-mode rejection ratio ensures accuracy in noisy environments

Current Regulation/Management Applications

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

Current Regulation/Management Procurement Notes

Verify the specific suffix 'RSWT' indicates the tape-and-reel packaging variant when ordering. Confirm that the B2 designation corresponds to the required 20 V/V gain setting for your circuit design. Ensure compatibility with your PCB footprint requirements for the 10-UQFN package before finalizing procurement.

Current Regulation/Management Selection Notes

Select this component when bidirectional current sensing is required alongside high precision. The zero-drift feature makes it suitable for applications demanding long-term stability without frequent calibration. Consider the 20 V/V gain if higher sensitivity is needed compared to standard 10 V/V variants.

Current Regulation/Management Part Context

This part belongs to the INA199 family of current sense amplifiers designed for high-accuracy measurements. The family includes various gain options and packaging types to suit different application needs. The RS package denotes a small outline quad flat no-lead form factor optimized for surface mount assembly.

Current Regulation/Management Replacement Considerations

Check datasheets for other INA199 variants such as INA199A2 or INA199C3 to verify gain and bandwidth compatibility. Ensure substitute parts match the 10-UQFN package dimensions and pinout configuration.