REF02CSZ

Overview

The REF02CSZ is a precision voltage reference integrated circuit manufactured by Analog Devices Inc. It provides a fixed 5 V output with a maximum initial accuracy of ±0.3%. The device operates on a single supply within an input voltage range of 7 V to 40 V and draws a maximum supply current of 1.4 mA. It features excellent temperature stability with a maximum temperature coefficient of 8.5 ppm/°C and low noise performance of 15 µV p-p (0.1 Hz to 10 Hz). The component supports a load current of up to 10 mA and is housed in an 8-SOIC surface-mount package.

Feature Summary

• Provides stable 5 V output with high initial accuracy
• Operates on single-supply voltages from 7 V to 40 V
• Features low noise and low power consumption
• Capable of driving loads up to 10 mA

Applications

• Digital-to-Analog Converters (DACs)
• Analog-to-Digital Converters (ADCs)
• Portable instrumentation systems
• Digital voltmeters

Procurement Notes

Verify the specific suffix against official documentation, as it indicates packaging format rather than functional change. Confirm RoHS compliance status for the specific revision. Check availability through authorized distributors, as stock levels may vary. Ensure the 8-SOIC package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when a stable 5 V reference is required with minimal external components. It is suitable for designs needing single-supply operation and moderate load-driving capability. Consider the 8.5 ppm/°C temperature coefficient for applications requiring good thermal stability. Verify that the 7 V minimum input voltage aligns with the system's available supply rails.

Part Context

The REF02 belongs to the REF01/REF02/REF03 family of precision voltage references from Analog Devices. This series utilizes an improved band gap design to achieve low cost, low noise, and low power characteristics. The REF02 specifically targets the 5 V output segment, complementing the 10 V (REF01) and 2.5 V (REF03) variants within the same architectural family.

Replacement Considerations

For new designs, Analog Devices recommends referring to the ADR02 as a modern alternative. Verify pinout compatibility if substituting with other 5 V references from different manufacturers. Ensure that the replacement meets the required 10 mA load current and 8.5 ppm/°C stability specifications.