INA208AIDR

Current Regulation/Management Overview

The INA208AIDR is a unidirectional current-shunt monitor manufactured by Texas Instruments, designed for high-side measurement applications. It features a fixed gain of 100 V/V and includes dual comparators with an integrated voltage reference. The device operates within a supply voltage range of 2.7 V to 18 V and draws a typical operating supply current of 1 mA. It supports input common-mode voltages from -16 V to 80 V. Accuracy is specified at 3.5%. The component is housed in a 14-pin SOIC package and is available in reel packaging.

Current Regulation/Management Feature Summary

• Provides a complete current sense solution with a fixed gain of 100 V/V
• Integrates dual comparators with an internal voltage reference
• Supports high-side measurement with wide common-mode voltage range

Current Regulation/Management Applications

• High-side current monitoring in industrial systems
• Power management circuitry
• Battery protection circuits

Current Regulation/Management Procurement Notes

Verify the specific suffix 'RG4' or standard 'R' against the manufacturer's latest documentation to confirm availability status, as some variants may be discontinued. Ensure the ordering part number matches the required package type and temperature grade. Cross-reference datasheet revisions to confirm pinout compatibility before procurement.

Current Regulation/Management Selection Notes

Select this component when a fixed 100 V/V gain is required for high-side shunt monitoring. The integrated dual comparators simplify design by eliminating external threshold components. Verify that the input common-mode voltage range of -16 V to 80 V aligns with the system's power rail specifications.

Current Regulation/Management Part Context

This part belongs to the INA20x family of unidirectional current-shunt monitors. The series offers three gain options: 20 V/V (INA206), 50 V/V (INA207), and 100 V/V (INA208). All members share similar architectures including dual comparators and voltage references, differing primarily in gain settings and package configurations.

Current Regulation/Management Replacement Considerations

The INA207AIDR and INA206AIDR are functional substitutes within the same family, offering gains of 50 V/V and 20 V/V respectively. These parts share identical pinouts and comparator structures but require recalibration of the expected output voltage relative to the shunt drop.