REF5040MDREP

Overview

The REF5040MDREP is a precision series voltage reference integrated circuit manufactured by Texas Instruments. It provides a fixed output voltage of 4.096 V with an initial accuracy of ±0.05%. The device features a low temperature coefficient of 5 ppm/°C and operates within an extended industrial temperature range from -55°C to +125°C. It supports input voltages between 4.296 V and 18 V, draws a supply current of 1.25 mA, and delivers up to 10 mA of output current. The component is housed in an 8-SOIC package.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial tolerance
• Maintains stability across wide temperature variations with low drift characteristics
• Supports high load current capability for demanding applications

Applications

• High-resolution data acquisition systems
• Precision analog-to-digital converter references
• Medical instrumentation requiring stable voltage sources
• Industrial process control measurement circuits

Procurement Notes

Verify the specific suffix MDREP against official Texas Instruments documentation to confirm it denotes the tape-and-reel packaging variant rather than tube packaging. Ensure compatibility with moisture sensitivity level requirements during storage and handling. Confirm that the 5 ppm/C temperature coefficient meets design specifications compared to other variants in the REF5040 family.

Selection Notes

Select this component when a fixed 4.096 V reference with ±0.05% accuracy is required. The 5 ppm/C drift rate suits applications needing better thermal stability than lower-grade references. The 8-SOIC package facilitates surface-mount assembly. Verify that the 1.25 mA supply current fits power budget constraints compared to lower-power alternatives.

Part Context

This part belongs to the REF50xx family of precision voltage references from Texas Instruments. These devices are designed for applications requiring high accuracy and low noise. The REF5040 variant specifically targets the 4.096 V output segment, commonly used in ADC/DAC interfaces. The MDREP suffix indicates a specific manufacturing or packaging configuration within this product line.

Replacement Considerations

REF5040AIDG4: Tube packaged version with similar electrical characteristics but potentially different temperature coefficient (3 ppm/C). REF5040AIDR: Reel packaged version with 3 ppm/C temperature coefficient. Verify if the 5 ppm/C drift of the MDREP variant is acceptable compared to the 3 ppm/C options.