REF2041AIDDCR

Overview

The REF2041AIDDCR is a precision series voltage reference integrated circuit manufactured by Texas Instruments. It provides fixed output voltages of 2.048V and 4.096V with an initial accuracy of ±0.05%. The device operates within an input voltage range of 4.116V to 5.5V and delivers a maximum output current of 20mA. It features a low temperature coefficient of 8ppm/°C and consumes 460µA of supply current. The component is housed in a SOT-23-THIN package and supports an operating temperature range from -40°C to 125°C.

Feature Summary

• Provides high-precision fixed output voltages of 2.048V or 4.096V with tight initial accuracy tolerance.
• Features low drift characteristics defined by an 8ppm/°C temperature coefficient for stable performance across wide thermal ranges.
• Integrates undervoltage lockout functionality to ensure reliable operation during power-up and shutdown sequences.

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• High-resolution measurement instrumentation systems
• Calibration equipment requiring stable voltage standards

Procurement Notes

Verify the specific suffix configuration against the manufacturer's official documentation to confirm the exact output voltage option, as the base part number may correspond to multiple voltage variants. Ensure the procurement channel supplies components with valid traceability records consistent with Texas Instruments manufacturing standards. Confirm that the received packages match the specified SOT-23-THIN form factor and marking codes to prevent integration errors in the final assembly process.

Selection Notes

Select this component when designing circuits that require a stable, low-noise voltage source for high-accuracy data conversion applications. The choice is driven by the need for minimal voltage drift over temperature variations and tight initial tolerance specifications. Consider the low quiescent current consumption for battery-powered or energy-efficient system designs where power management is critical alongside signal integrity requirements.

Part Context

This device belongs to the REF2041 family of precision voltage references designed for demanding electronic applications. It serves as a fundamental building block for establishing accurate voltage levels in mixed-signal systems. The product line emphasizes reliability and precision, supporting various industrial and commercial environments through robust packaging options and extended temperature ratings suitable for diverse operational conditions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative voltage references based on pin-out alignment, electrical parameter matching, and package dimensions before substitution.