INA199A2DCKR

Current Regulation/Management Overview

The INA199A2DCKR is a single-channel, bi-directional current sense amplifier from Texas Instruments. It features a zero-drift architecture with an input offset voltage of 5 uV and input bias current of 28 uA. The device operates on a supply voltage range of 2.7 V to 26 V, consuming 115 uA of quiescent current. It provides a fixed voltage gain of 100 V/V (40 dB) and supports a common-mode voltage up to 12 V. Key performance metrics include a CMRR of 100 dB, a gain error of 0.03%, and a bandwidth of 14 kHz. It is housed in a SC-70-6 package and functions within a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bi-directional operation enables accurate measurement of current flow in both directions across the shunt resistor.
• Zero-drift technology ensures high precision by minimizing input offset voltage drift over temperature variations.
• High common-mode voltage capability allows for flexible placement in high-side or low-side configurations.

Current Regulation/Management Applications

• Battery management systems
• Overcurrent protection circuits
• Industrial process control

Current Regulation/Management Procurement Notes

Verify that the specific suffix 'A2' corresponds to the required accuracy grade and gain setting for your design requirements. Confirm the SC-70-6 package dimensions match your PCB footprint constraints. Ensure the operating environment stays within the specified -40°C to +125°C temperature range to maintain guaranteed electrical parameters.

Current Regulation/Management Selection Notes

Select this component when high accuracy is required for bidirectional current monitoring in space-constrained designs. The fixed 100 V/V gain simplifies signal conditioning compared to programmable gain alternatives. Consider the 115 uA quiescent current against power budget constraints relative to lower-power options like the INA186.

Current Regulation/Management Part Context

This part belongs to the INA199 series of current sense amplifiers. It shares the same core topology and package as variants like the INA199C2DCKR but differs in specific accuracy grades and internal calibration settings defined by the 'A' suffix. It complements other Texas Instruments sensor solutions for comprehensive system monitoring.

Current Regulation/Management Replacement Considerations

The INA199C2DCKR is a related variant within the same family. Verify if the specific accuracy and gain specifications of the C-grade variant meet the application requirements before substitution.