INA199C2DCKT

Current Regulation/Management Overview

The INA199C2DCKT is a single-channel, bi-directional current sense amplifier from Texas Instruments. It operates with a supply voltage range of 2.7 V to 26 V and supports common-mode voltages up to 12 V. The device features a fixed gain of 100 V/V, a gain bandwidth product of 30 kHz, and a typical input offset voltage of 5 µV. It exhibits a common-mode rejection ratio (CMRR) of 120 dB and draws 65 µA of operating supply current. The component is housed in a SC-70-6 package and functions within an industrial temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bi-directional current sensing capability for both high-side and low-side measurements
• Zero-drift architecture ensuring high precision with minimal offset voltage drift
• High common-mode rejection ratio for accurate signal extraction in noisy environments

Current Regulation/Management Applications

• Battery management systems
• Overcurrent protection circuits
• Load switch control
• Power delivery monitoring

Current Regulation/Management Procurement Notes

Verify the specific suffix 'C2' indicates the correct gain and accuracy grade required for your design. Confirm the 'T' packaging designation matches your assembly line requirements. Check for recent Product Change Notifications regarding manufacturing site updates or material changes. Ensure compatibility with your PCB footprint for the SC-70-6 package. Validate that the bi-directional output meets your system's voltage swing needs.

Current Regulation/Management Selection Notes

Select this component when precise bi-directional current monitoring is required in space-constrained designs. The zero-drift technology minimizes calibration needs compared to standard amplifiers. Consider the 100 V/V gain for applications requiring significant signal amplification from small shunt voltages. Evaluate the 65 µA quiescent current against battery life constraints in portable devices.

Current Regulation/Management Part Context

This part belongs to the INA199 family of current sense amplifiers, designed for low-power, high-precision applications. It shares the SC-70-6 package form factor with other variants in the series but differs in gain and accuracy specifications. The family targets industrial and consumer electronics where board space and power efficiency are critical constraints.

Current Regulation/Management Replacement Considerations

NCS199A2RSQT2G by onsemi is documented as a direct substitute.