INA199C2RSWR

Current Regulation/Management Overview

The INA199C2RSWR is a unidirectional current sense amplifier from Texas Instruments, housed in a 10-UQFN package. It features a fixed gain of 100 V/V and operates on a single supply voltage ranging from 2.7 V to 26 V. The device supports bidirectional current sensing with a common-mode voltage range extending from -100 mV to 26 V. Key electrical specifications include a maximum input offset voltage of 5 µV, an input bias current of 28 µA, and a gain error of 0.03%. It delivers a gain-bandwidth product of 30 kHz and maintains a common-mode rejection ratio of 100 dB while consuming 65 µA of quiescent current.

Current Regulation/Management Feature Summary

• Provides high-precision current monitoring with low gain error for accurate system management
• Supports bidirectional sensing within a wide common-mode voltage range up to 26 V
• Integrates zero-drift architecture to minimize offset voltage drift over temperature variations

Current Regulation/Management Applications

• Battery management systems requiring precise charge/discharge monitoring
• High-side or low-side current sensing in industrial power distribution units
• Overcurrent protection circuits in portable electronic devices

Current Regulation/Management Procurement Notes

Verify the specific suffix 'C2' to confirm the 100 V/V gain configuration, as other suffixes indicate different gains. Ensure the UQFN-10 footprint matches the PCB layout requirements. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement orders.

Current Regulation/Management Selection Notes

Select this component when a fixed 100 V/V gain is required for applications operating within a 26 V common-mode limit. Consider the 65 µA quiescent current for battery-powered designs. Evaluate thermal performance in the UQFN-10 package if high ambient temperatures are expected during operation.

Current Regulation/Management Part Context

This part belongs to the INA199 family of zero-drift current sense amplifiers. It shares the same UQFN-10 package and core architecture with variants like INA199C3RSWR, which offers a 200 V/V gain. The series is designed for applications demanding high accuracy without external calibration.

Current Regulation/Management Replacement Considerations

INA199C3RSWR provides similar functionality but with a 200 V/V gain instead of 100 V/V.