ADR433BRZ-REEL7

Overview

The ADR433BRZ-REEL7 is a precision voltage reference from the Analog Devices XFET family, providing a fixed 3.0 V output in an 8-lead SOIC package. It features B-grade initial accuracy of ±1.5 mV (±0.05%) and a maximum temperature coefficient of 3 ppm/°C over the -40°C to +125°C range. The device operates with a supply voltage between 5.0 V and 18 V, requiring only 2 V of headroom. Quiescent current is typically 800 µA, while it supports sourcing up to 30 mA and sinking up to -20 mA.

Feature Summary

• Utilizes XFET technology for low noise and minimal thermal drift curvature correction
• Capable of sourcing 30 mA and sinking 20 mA without external components
• Includes a trim terminal for adjusting output voltage within a specified percentage range

Applications

• Precision data acquisition systems
• High resolution data converters
• Medical instruments
• Industrial process control systems

Procurement Notes

Verify the specific suffix REEL7 indicates tape-and-reel packaging when ordering. Confirm that the BRZ designation corresponds to the SOIC-8 package variant rather than MSOP. Ensure the B grade selection matches the required accuracy specifications for the target application before finalizing procurement.

Selection Notes

Select this component for applications requiring high stability and low noise in a standard surface-mount package. The B grade offers tighter accuracy compared to the A grade. Consider the 2 V minimum headroom requirement when designing the power supply circuit to ensure proper regulation under all load conditions.

Part Context

This part belongs to the ADR43x series of ultralow noise XFET voltage references. The series includes variants with different fixed output voltages ranging from 2.048 V to 5.000 V. All members share similar electrical characteristics and pinouts, differing primarily in their nominal output voltage and specific accuracy grades.

Replacement Considerations

ADR433ARZ