ADR02AR

Overview

The ADR02AR is a precision series voltage reference from Analog Devices, housed in an 8-lead NSOIC package. It delivers a fixed output of 5V with an initial accuracy of 0.1% and a temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 7.0V to 36.0V and draws a typical quiescent current of 1mA. It provides a maximum load current of 10mA without requiring external capacitors. Key electrical parameters include line regulation of 30ppm/V, load regulation of 70ppm/mA, and low noise of 10µV p-p across the 0.1Hz to 10Hz bandwidth. The component functions reliably across an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Features a bandgap voltage reference architecture with integrated external buffer and simple resistor network for high stability.
• Includes dedicated TEMP pin for temperature sensing and TRIM pin for precise output voltage adjustment.
• Delivers high output current capability of 10mA without the necessity for external stabilization capacitors.

Applications

• Precision data acquisition systems
• High-resolution analog-to-digital converters
• Industrial process control instrumentation

Procurement Notes

Verify the specific suffix against official documentation, as packaging designators like REEL7 indicate tape-and-reel formats which may differ from tube variants. Confirm RoHS compliance status and lead-free characteristics directly with the manufacturer or authorized distributors. Ensure the ordering part number matches the required package style and temperature grade for your specific application constraints.

Selection Notes

Select this component when a stable 5V reference is required with tight tolerance and low drift over wide temperature variations. Consider the 10mA drive capability for direct interfacing with ADCs or DACs. Evaluate the 10ppm/°C temperature coefficient against system accuracy requirements. Verify that the input voltage remains within the 7V to 36V operational window to ensure proper regulation and performance.

Part Context

The ADR02AR belongs to the ADR02 series of ultra-small precision voltage references manufactured by Analog Devices. This family is designed for applications demanding high accuracy and long-term stability. The device utilizes a bandgap reference core optimized for low noise and minimal temperature dependence, making it suitable for critical analog signal conditioning tasks in compact electronic designs.

Replacement Considerations

Consult official substitution guides for compatible parts within the ADR series or equivalent offerings from other manufacturers. Verify pin compatibility, output voltage, accuracy class, and thermal performance before implementing any alternative component to maintain system integrity.