REF5040AIDGKT

Overview

The REF5040AIDGKT is a fixed series voltage reference IC from Texas Instruments, housed in an 8-pin VSSOP package. It provides a nominal output voltage of 4.096V with an initial accuracy of ±0.1%. The device operates within an input voltage range of 4.296V to 18V and supports a maximum output current of 10mA. Key performance metrics include a temperature coefficient of 8ppm/°C and low noise characteristics of 12µVpp between 0.1Hz and 10Hz. It functions reliably across a wide temperature range from -40°C to +125°C.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial tolerance specifications.
• Features ultra-low noise performance suitable for sensitive analog signal chains.
• Offers extended thermal stability with minimal drift over the industrial temperature range.

Applications

• High-resolution data acquisition systems requiring stable reference sources
• Precision instrumentation and measurement equipment
• Medical devices demanding accurate signal conditioning

Procurement Notes

Verify the specific suffix 'DGKT' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the ±0.1% accuracy grade meets system requirements, as other grades like 'ID' offer tighter tolerances. Ensure the 8-VSSOP footprint matches the PCB layout design. Check for RoHS3 compliance status if environmental regulations apply to the final product deployment.

Selection Notes

Select this component when a compact surface-mount solution is needed for precision applications. The VSSOP package offers space efficiency compared to larger SOIC variants. Consider the 10mA drive capability against load requirements; higher current needs may require external buffering. Evaluate the 8ppm/°C drift against long-term stability needs, noting that lower drift options exist within the broader REF50xx family.

Part Context

This part belongs to the REF50xx family of precision voltage references designed for general-purpose use. It complements other variants such as the REF5025 or REF5033, which provide different output voltages but share similar architectural benefits. The family targets applications where power consumption, size, and accuracy must be balanced effectively.

Replacement Considerations

Direct pin-compatible alternatives within the same package include the REF5040IDGKT for tighter accuracy or the REF5040QDGKT for automotive qualification. Verify electrical parameter compatibility before substitution to ensure circuit performance remains within specification limits.