REF5040ID

Overview

The REF5040ID is a precision voltage reference IC from Texas Instruments, featuring a fixed output of 4.096 V with an initial accuracy of ±0.05%. It operates within an input voltage range of 4.296 V to 18 V and supports a maximum load current of 10 mA. The device exhibits a low temperature coefficient of 3 ppm/°C and consumes 800 µA of supply current. It is housed in an 8-SOIC package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-precision fixed voltage output with tight initial accuracy tolerance
• Features very low drift characteristics suitable for sensitive analog circuits
• Operates efficiently with low quiescent current consumption

Applications

• High-resolution data acquisition systems requiring stable reference voltages
• Precision instrumentation amplifiers and signal conditioning circuits
• Calibration equipment needing long-term stability and low noise

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and accuracy grade. Ensure compatibility with system input voltage limits and thermal requirements. Confirm RoHS compliance status for environmental regulations. Check for moisture sensitivity levels if storage conditions are critical. Validate that the SOIC-8 footprint matches the design layout.

Selection Notes

Select this component when a fixed 4.096 V reference with ±0.05% accuracy is required. Consider the 3 ppm/°C temperature coefficient for applications with significant thermal variations. Evaluate the 10 mA output current capability against load demands. Compare power consumption needs against other series references in the portfolio.

Part Context

This part belongs to the REF50xx family of precision voltage references designed for demanding industrial and measurement applications. The series offers various output voltages and accuracies, with the REF5040 specifically targeting applications requiring a standard 4.096 V level. It complements other Texas Instruments PMIC solutions for complete power management designs.

Replacement Considerations

Check for REF5040IDR or REF5040IDG4 as potential variants with different packaging or lifecycle statuses. Verify pinout compatibility before substituting. Ensure electrical parameters match exactly to maintain system performance.