ADR434AR-REEL7

Overview

The ADR434AR-REEL7 is an XFET voltage reference from Analog Devices, providing a nominal output of 4.096 V in an 8-lead SOIC package. It operates within a supply voltage range of 6.1 V to 18 V with a minimum headroom of 2 V. The device features low noise performance and high accuracy suitable for precision applications.

Feature Summary

• Utilizes patented XFET technology for exceptionally low noise and minimized temperature drift curvature.
• Capable of sourcing up to 30 mA and sinking up to 20 mA without external components.
• Includes a dedicated trim terminal allowing output voltage adjustment over a 0.5% range.

Applications

• Precision data acquisition systems
• High resolution data converters
• Medical instruments

Procurement Notes

Verify the specific suffix 'REEL7' corresponds to tape-and-reel packaging when ordering. Confirm that the 'A' grade designation matches the required initial accuracy and temperature coefficient specifications for your design. Ensure the input voltage meets the minimum operating requirement of 6.1 V for this specific model variant.

Selection Notes

Select this component for designs requiring low noise density and high current drive capability in a compact surface-mount package. Consider the A-grade specifications for standard industrial accuracy requirements. Evaluate thermal resistance parameters if operating near maximum load currents or elevated ambient temperatures.

Part Context

This part belongs to the ADR43x series of ultralow noise XFET voltage references. The family includes variants with different output voltages such as 2.048 V, 2.500 V, and 5.000 V. All members share similar architectural benefits including low quiescent current and wide operating temperature ranges.

Replacement Considerations

ADR434BRZ provides B-grade accuracy with lower temperature coefficients. ADR434ARZ offers the same A-grade performance but in tube packaging instead of reel format.