ADR425CR-REEL7

Overview

The ADR425CR-REEL7 is a second-generation XFET voltage reference providing a fixed 5.00 V output in an 8-lead SOIC package. It features a maximum quiescent current of 500 µA and supports up to 10 mA load current. The device operates within a supply range of 7 V to 18 V and maintains performance across an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Utilizes patented XFET architecture for superior accuracy and thermal hysteresis compared to band gap references.
• Features low noise characteristics suitable for precision conversion applications.
• Includes a trim terminal allowing output voltage adjustment over a ±0.5% range without compromising other performance metrics.

Applications

• Precision data acquisition systems
• High resolution converters
• Portable medical instruments

Procurement Notes

Verify the specific suffix 'CR' against official Analog Devices documentation, as standard datasheets typically list grades 'A' or 'B'. Confirm that the component matches the 8-lead SOIC footprint and 5.00 V nominal output specifications before integration into designs requiring strict electrical tolerances.

Selection Notes

Select this component when a stable 5.00 V reference is required with minimal power consumption. Ensure the input voltage remains at least 2 V above the output voltage to maintain regulation. Consider the XFET technology benefits regarding long-term stability and low noise density for sensitive analog signal paths.

Part Context

This part belongs to the ADR42x series of ultraprecision voltage references manufactured by Analog Devices Inc. The series utilizes eXtra implanted junction FET (XFET) technology to achieve low noise and high accuracy. The ADR425 variant specifically provides a 5.00 V output level within this family lineup.

Replacement Considerations

ADR425ARZ-REEL7

FAQ

Can the output voltage be adjusted?

Yes, the TRIM pin allows for adjusting the output voltage over a ±0.5% range without affecting the temperature coefficient.

What is the minimum operating supply voltage?

The minimum operating supply voltage is 7 V, requiring a headroom of at least 2 V above the 5 V output.