INA199A2DCKT

Current Regulation/Management Overview

The INA199A2DCKT is a zero-drift current sense amplifier manufactured by Texas Instruments, housed in a SC-70-6 surface-mount package. It features a fixed voltage gain of 100 V/V and supports bidirectional current measurement with high-side or low-side sensing capabilities. The device operates within a supply voltage range of 2.7 V to 26 V and maintains an operating temperature range from -40°C to +125°C. Key electrical specifications include a maximum input offset voltage of 5 µV, a common-mode rejection ratio of 120 dB, and a gain error of 0.03%. It draws a typical operating supply current of 115 µA and offers a gain-bandwidth product of 30 kHz.

Current Regulation/Management Feature Summary

• Zero-drift architecture ensures minimal input offset voltage drift over temperature variations
• Bi-directional operation allows accurate current monitoring in both directions
• High common-mode rejection ratio provides precise measurements despite high common-mode voltages

Current Regulation/Management Applications

• Battery management systems requiring precise current monitoring
• Industrial process control loops for load regulation
• Overcurrent protection circuits in power distribution units

Current Regulation/Management Procurement Notes

Verify the specific suffix 'A2' confirms the 100 V/V gain variant during procurement. Ensure the 'DCK' package designation matches the required SC-70-6 footprint for PCB layout compatibility. Confirm RoHS compliance status if restricted material usage is mandated for the target application environment.

Current Regulation/Management Selection Notes

Select this component when ultra-low offset voltage and drift are critical for measurement accuracy. The fixed 100 V/V gain simplifies design calculations for standard shunt resistors. Consider the small SC-70-6 package size for space-constrained designs where thermal performance remains within specified limits.

Current Regulation/Management Part Context

This part belongs to the INA199 family of zero-drift current sense amplifiers. It shares architectural similarities with other devices in the series but is distinguished by its specific gain setting and packaging. The family is designed for applications demanding high precision in harsh environments with significant temperature fluctuations.

Current Regulation/Management Replacement Considerations

INA199A2DCKR is a tape-and-reel alternative offering identical electrical characteristics and functionality within the same package type.