ADR4533BRZ

Overview

The ADR4533BRZ is a high-precision, low-power voltage reference providing a fixed 3.300 V output. It features a maximum initial output voltage error 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 3.4 V and 15 V, drawing a maximum quiescent current of 950 μA. It supports an output current capacity of +10 mA sourcing and −10 mA sinking, with a typical output noise of 2.1 μV p-p from 0.1 Hz to 10 Hz.

Feature Summary

• Utilizes innovative core topology for industry-leading temperature stability and low noise performance.
• Features low thermal hysteresis and low long-term drift to improve system accuracy over time.
• Supports portable equipment applications through low quiescent current and low dropout voltage.

Applications

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

Procurement Notes

Verify the specific grade suffix (B) against the required temperature range and accuracy specifications before ordering. Confirm that the SOIC-8 package matches the PCB footprint requirements. Ensure input voltage stays within the 3.4 V to 15 V operational limits to maintain specified line regulation and ripple rejection ratios.

Selection Notes

Select this component when a stable 3.3 V reference is needed in extended industrial environments. Compare the 2 ppm/°C temperature coefficient against stricter requirements; higher grades like C or D offer better coefficients but are limited to 0°C to +70°C. Consider the 950 μA quiescent current if power consumption is critical for battery-operated designs.

Part Context

This part belongs to the ADR45xx series of ultralow noise, high accuracy voltage references manufactured by Analog Devices. The series includes various fixed output voltages such as 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V. All variants share similar architectural benefits regarding noise performance and long-term stability.

Replacement Considerations

ADR4533ARZ

FAQ

What is the maximum initial output voltage error for the B grade?

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

Does the ADR4533BRZ support both sourcing and sinking currents?

Yes, it supports an output current capacity of +10 mA sourcing and −10 mA sinking.