ADR4540ARZ

Overview

The ADR4540ARZ is a series precision voltage reference providing a fixed output of 4.096 V. It features an initial accuracy of ±0.04% and a temperature coefficient of 2 ppm/°C over the −40°C to +125°C range. The device operates with an input voltage between 3 V and 15 V, drawing a maximum quiescent current of 950 μA. It supports ±10 mA output current and utilizes an 8-lead SOIC package.

Feature Summary

• Ultra-low noise performance for high-resolution applications
• High accuracy with minimal long-term drift
• Low dropout voltage capability for portable systems

Applications

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

Procurement Notes

Verify the specific grade suffix (e.g., ARZ) against the datasheet ordering guide to confirm the exact temperature range and accuracy class. Ensure the package type matches the design requirements. Confirm RoHS compliance status as specified in the manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when a stable 4.096 V reference is required with low noise characteristics. Consider the A grade specifications if extended industrial temperature operation is necessary. Evaluate the load regulation and line regulation parameters relative to the system's power supply stability.

Part Context

This part belongs to the ADR45xx family of ultralow noise, high accuracy voltage references from Analog Devices. The family includes various output voltages and grades, sharing a common innovative core topology designed for excellent temperature stability and low output noise across different operating conditions.

Replacement Considerations

ADR4540BRZ offers higher initial accuracy (±0.02%) within the same package and temperature range.