INA199A3RSWT

Current Regulation/Management Overview

The INA199A3RSWT is a single-channel, bidirectional current shunt monitor from Texas Instruments. It features a fixed gain of 200 V/V and operates with a supply voltage between 2.7 V and 26 V. The device supports common-mode voltages up to 12 V and offers high accuracy with a maximum gain error of 0.03%. Key electrical parameters include a 14 kHz gain-bandwidth product, 120 dB CMRR, and 5 uV input offset voltage. It functions within a temperature range of -40°C to +125°C and consumes 115 uA of quiescent current.

Current Regulation/Management Feature Summary

• Zero-drift architecture ensures minimal offset voltage drift over temperature and time
• Bidirectional measurement capability for both high-side and low-side current sensing
• High precision performance with ultra-low gain error specifications

Current Regulation/Management Applications

• Industrial process control systems requiring precise current monitoring
• Battery management systems in portable and stationary applications
• Overcurrent protection circuits in power distribution units

Current Regulation/Management Procurement Notes

Verify the specific suffix 'WT' against official Texas Instruments documentation to confirm tape-and-reel packaging details. Ensure compatibility with RoHS standards and check for any recent production lifecycle notices. Confirm that the UQFN-10 package dimensions match your PCB footprint requirements before finalizing procurement orders.

Current Regulation/Management Selection Notes

Select this component when high accuracy and stability are required in current sensing applications. The zero-drift technology makes it suitable for precision measurements where offset errors must be minimized. Consider the 12 V common-mode limit and 200 V/V gain when designing for specific voltage ranges and signal levels.

Current Regulation/Management Part Context

This part belongs to the INA199 series of current shunt monitors. It shares the same core amplifier architecture as other variants in the family but differs in gain setting and accuracy grade. The RS package denotes the UQFN-10 form factor used across multiple TI current sense products.

Current Regulation/Management Replacement Considerations

INA199A3RSWR is a verified equivalent variant with identical electrical characteristics and functionality, differing only in packaging format.