INA199A1DCKT

Current Regulation/Management Overview

The INA199A1DCKT is a bi-directional zero-drift current sense amplifier manufactured by Texas Instruments. It features a fixed gain of 50 V/V and operates within a supply voltage range of 2.7 V to 26 V. The device offers high precision with an input offset voltage of 5 µV and a common-mode rejection ratio of 120 dB. It supports bidirectional current sensing in both low-side and high-side configurations, utilizing an SC-70-6 surface-mount package. The operational temperature range extends from -40 °C to +125 °C, ensuring reliability in demanding environments.

Current Regulation/Management Feature Summary

• Bi-directional zero-drift architecture for accurate current monitoring
• Fixed 50 V/V gain simplifies circuit design
• High common-mode rejection ratio ensures signal integrity
• Supports low-side and high-side sensing topologies

Current Regulation/Management Applications

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

Current Regulation/Management Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the specific grade 'A1' matches required accuracy specifications. Ensure the SC-70-6 package footprint aligns with PCB layout constraints. Check moisture sensitivity levels for reflow soldering profiles. Validate RoHS compliance status against regional regulatory requirements.

Current Regulation/Management Selection Notes

Select this component for applications requiring precise bi-directional current measurement with minimal drift over temperature. The fixed 50 V/V gain reduces external resistor requirements. Consider the 2.7 V minimum supply voltage for low-power designs. Evaluate the 120 dB CMRR for noisy industrial environments. Compare power consumption against system budget constraints.

Current Regulation/Management Part Context

This part belongs to the INA199 series of current sense amplifiers. It shares the same core amplifier architecture as other variants in the family but differs in gain and accuracy grades. The SC-70-6 package provides a compact solution for space-constrained designs. It complements other Texas Instruments power management and signal conditioning components.

Current Regulation/Management Replacement Considerations

INA199A1DCKR: Identical electrical specifications with reel packaging instead of cut tape.

Current Regulation/Management FAQ

Is the INA199A1DCKT suitable for high-side current sensing?

Yes, it supports both low-side and high-side current sensing configurations.

What is the fixed gain of this amplifier?

The device has a fixed gain of 50 V/V.