INA208AID

Current Regulation/Management Overview

The INA208AID is a high-side current-shunt monitor manufactured by Texas Instruments, designed for precise current and power monitoring in systems with common-mode voltages ranging from -16 V to +80 V. It operates on a single supply voltage between 2.7 V and 18 V, drawing a typical quiescent current of 2.8 mA. The device features an output voltage proportional to the differential input voltage across the shunt resistor. It is housed in a compact MSOP-10 surface-mount package and supports an operating temperature range from -40°C to +125°C, ensuring reliability in demanding industrial environments.

Current Regulation/Management Feature Summary

• Provides accurate high-side current measurement capability within a wide common-mode voltage range.
• Features a rail-to-rail output that simplifies interface requirements with downstream analog-to-digital converters or microcontrollers.
• Incorporates internal gain setting resistors to eliminate external component count and reduce board space usage.

Current Regulation/Management Applications

• Industrial process control systems requiring precise load current monitoring
• Power distribution units and battery management systems
• Overcurrent protection circuits in motor drives and solenoid controls

Current Regulation/Management Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and thermal characteristics. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and traceability before finalizing procurement orders.

Current Regulation/Management Selection Notes

Select this component when high-side sensing is required with common-mode voltages exceeding standard operational amplifier limits. Consider the fixed internal gain when designing the shunt resistor value to ensure the output remains within the supply voltage rails. Evaluate the quiescent current consumption against system power budgets, particularly in battery-operated applications where efficiency is critical.

Current Regulation/Management Part Context

The INA208 belongs to the INA20x family of current monitors, which are optimized for cost-effective and space-constrained designs. This series integrates precision amplifiers and gain resistors into a single monolithic structure. The INA208 specifically offers a fixed gain configuration, distinguishing it from adjustable variants within the same product line while maintaining similar electrical performance standards.

Current Regulation/Management Replacement Considerations

Consult official Texas Instruments substitution guides for verified alternatives. Generic current monitors may lack the specific common-mode voltage range or accuracy specifications required for direct replacement without circuit redesign.