INA199C1DCKT

Current Regulation/Management Overview

The INA199C1DCKT 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 features a fixed gain of 50 V/V. Key electrical specifications include an input offset voltage of 5 µV, a gain bandwidth product of 80 kHz, and a common-mode rejection ratio of 120 dB. The device draws a typical operating supply current of 65 µA and supports an input common-mode voltage up to 12 V. It is housed in a compact SC-70-6 surface-mount package and is rated for operation between -40°C and +125°C.

Current Regulation/Management Feature Summary

• Bi-directional current sensing capability with high-side or low-side monitoring
• Zero-drift architecture utilizing chopper stabilization for precision
• Fixed internal gain of 50 V/V for simplified circuit design
• Low power consumption suitable for battery-operated systems

Current Regulation/Management Applications

• Battery management systems in portable electronics
• Overcurrent protection circuits in industrial equipment
• Load switching control in automotive applications
• Power distribution units requiring precise current monitoring

Current Regulation/Management Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm that the 'C1' designation corresponds to the required gain and accuracy grade for your application. Ensure compatibility with the SC-70-6 footprint during PCB layout. Check moisture sensitivity levels if storage conditions exceed specified limits before reflow soldering.

Current Regulation/Management Selection Notes

Select this component when a fixed 50 V/V gain is appropriate for the expected differential voltage across the shunt resistor. Consider the 12 V common-mode limit; higher voltages require alternative models like the INA199B series. Evaluate the 65 µA quiescent current against system power budgets. Verify that the SC-70-6 package size fits the available board space constraints.

Current Regulation/Management Part Context

This part belongs to the INA199 family of zero-drift current sense amplifiers from Texas Instruments. The family offers various gain options and package types to suit different density and precision requirements. The C1 variant specifically provides a 50 V/V gain, distinguishing it from other gain configurations within the same series.

Current Regulation/Management Replacement Considerations

Direct substitutes may include other INA199 variants with matching gain and package, such as INA199A1DCKT or INA199B1DCKT, depending on the required common-mode voltage range and accuracy class.