INA199C3DCKR

Current Regulation/Management Overview

The INA199C3DCKR is a 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 200 V/V, a gain error of 0.03%, and an input offset voltage of 5 uV. Key electrical specifications include a gain-bandwidth product of 14 kHz, a common-mode rejection ratio of 120 dB, and an operating quiescent current of 65 uA. It is housed in a SC-70-6 surface-mount package and functions reliably across a temperature range of -40°C to +125°C.

Current Regulation/Management Feature Summary

• Bi-directional operation for accurate current sensing in both directions
• Zero-drift architecture ensuring high precision with low input offset voltage
• Supports both low-side and high-side current sensing configurations

Current Regulation/Management Applications

• Battery management systems
• Industrial process control
• Power supply monitoring

Current Regulation/Management Procurement Notes

Verify the specific suffix DCKR corresponds to the SC-70-6 package and tape-and-reel orientation required for your assembly line. Confirm that the C3 grade meets your accuracy requirements, as other grades may offer different offset characteristics. Ensure compatibility with your PCB footprint and reflow profile specifications.

Current Regulation/Management Selection Notes

Select this component when a compact SC-70-6 package is necessary for space-constrained designs. It is suitable for applications requiring bidirectional current measurement with high DC accuracy. Consider the 65 uA quiescent current if power efficiency is a priority compared to higher-current alternatives in the same family.

Current Regulation/Management Part Context

This part belongs to the INA199 series of zero-drift current sense amplifiers from Texas Instruments. The series is designed for high-precision applications requiring minimal drift over temperature. The C3 variant specifically denotes the accuracy grade and packaging configuration within the broader product line.

Current Regulation/Management Replacement Considerations

INA199A3DCKR offers similar performance with potentially different initial accuracy grades. INA199B3DCKR provides alternative gain error specifications. Verify pinout compatibility and thermal performance before substituting.