INA199C2DCKR

Current Regulation/Management Overview

The INA199C2DCKR is a single-channel, bi-directional current sense amplifier manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 26 V and supports a common-mode voltage 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 of 120 dB and a maximum gain error of 0.03%. Operating with a quiescent current of 65 µA, it functions reliably across an extended temperature range from -40°C to +125°C. The component is housed in a compact SC-70-6 surface-mount package.

Current Regulation/Management Feature Summary

• Bi-directional measurement capability for accurate current sensing in both directions
• Zero-drift architecture ensuring high precision with low input offset voltage
• High common-mode rejection ratio for noise immunity in noisy environments
• Low power consumption suitable for battery-operated applications

Current Regulation/Management Applications

• Battery management systems
• Overcurrent protection circuits
• Load switch control
• Power monitoring in portable devices

Current Regulation/Management Procurement Notes

Verify the specific suffix 'CKR' indicates the SC-70-6 package and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure compatibility with your PCB footprint design for the 6-pin SC-70 package. Check for moisture sensitivity level requirements during storage and handling. Validate that the 12 V common-mode voltage limit meets your circuit's operational requirements.

Current Regulation/Management Selection Notes

Select this component when a low-profile SC-70-6 package is required for space-constrained designs. Choose the C2 variant for a fixed 100 V/V gain if higher output swing is needed compared to lower gain options. Consider the 12 V common-mode limit; use other variants if voltages exceed this threshold. The zero-drift technology is ideal for applications requiring high accuracy without frequent calibration. Evaluate the 65 µA quiescent current against system power budgets.

Current Regulation/Management Part Context

The INA199 series comprises zero-drift current sense amplifiers designed for high-precision applications. This specific part belongs to the C2 sub-series, indicating a fixed gain configuration. It is part of Texas Instruments' portfolio of analog signal chain components focused on power management and monitoring. The series offers various gain options and packages to suit different design constraints.

Current Regulation/Management Replacement Considerations

Check for direct pin-to-pin replacements within the INA199 family with different gain or package options. Verify automotive-grade equivalents like the INA199Q series if AEC-Q100 certification is required. Cross-reference with other zero-drift current sense amplifiers from Texas Instruments for potential upgrades in performance or package size.