ADR4550BRZ

Overview

The ADR4550BRZ is a high-precision, low-power voltage reference from Analog Devices featuring an output voltage of 5.0 V. It offers a maximum initial accuracy of ±0.02% and a temperature coefficient of 2 ppm/°C over the −40°C to +125°C range. The device operates with a supply voltage between 3 V and 15 V, drawing a maximum quiescent current of 950 μA. It provides up to 10 mA sourcing and sinking current capability within an 8-lead SOIC package.

Feature Summary

• Utilizes innovative core topology for industry-leading temperature stability and noise performance
• Features low thermally induced output voltage hysteresis and low long-term drift
• Supports extended industrial operating temperatures from -40°C to +125°C

Applications

• Precision data acquisition systems
• High resolution data converters
• Industrial instrumentation
• Medical devices

Procurement Notes

Verify the specific grade suffix (B) against the required temperature coefficient and initial accuracy specifications in the official datasheet. Confirm that the 8-lead SOIC package matches the PCB footprint requirements. Ensure the input voltage range supports the system's supply rails and check for any automotive qualification needs if applicable.

Selection Notes

Select this component when a stable 5.0 V reference is required with high accuracy and low noise. Compare the B-grade specifications against other grades like C or D if the application allows for narrower temperature ranges. Consider the low dropout voltage and quiescent current for power-constrained portable designs.

Part Context

The ADR4550BRZ belongs to the ADR45xx series of ultralow noise, high accuracy voltage references. This family includes various output voltages such as 2.048 V, 2.5 V, 3.0 V, 3.3 V, and 4.096 V. All members share similar architectural features, including low noise, high precision, and availability in both SOIC and LCC packages.

Replacement Considerations

ADR4550ARZ

FAQ

What is the maximum initial output voltage error for the ADR4550BRZ?

The maximum initial output voltage error for the B grade is ±0.02%.

Does the ADR4550BRZ support remote sensing?

No, the 8-lead SOIC package does not support remote sensing; only the LCC package variant offers this feature.