REF02CJ

Overview

The REF02CJ is a precision voltage reference and temperature transducer manufactured by Analog Devices Inc. It provides a stable 5 V output with an initial accuracy of ±0.3% (±50 mV). The device operates over a commercial temperature range of 0°C to 70°C and accepts input voltages from 7 V to 40 V. Key electrical specifications include a maximum temperature coefficient of 65 ppm/°C, a quiescent supply current of 1.6 mA, and a load driving capability of 8 mA. The package option is the 8-Lead TO-99 metal header.

Feature Summary

• Provides a fixed 5 V output with high stability across varying temperatures and supply conditions.
• Includes a dedicated temperature monitoring pin that outputs a linear voltage proportional to ambient temperature changes.
• Features an adjustable output trim terminal allowing for system error correction without significant impact on temperature performance.
• Designed with internal circuitry to withstand indefinite short-circuit conditions to ground or the input voltage.

Applications

• Digital voltmeters
• Portable instrumentation
• Analog-to-digital and digital-to-analog converter references

Procurement Notes

Verify the specific suffix 'CJ' to confirm the 0°C to 70°C operating range and TO-99 package configuration. Ensure the application requires the specified 8 mA load current limit rather than higher capacity variants. Confirm compliance with environmental standards such as RoHS if applicable to the manufacturing batch. Cross-reference the datasheet revision to ensure alignment with design requirements.

Selection Notes

Select this component when a 5 V reference with moderate precision is required for commercial environments. The TO-99 package offers robustness suitable for industrial settings. Consider the REF02A or REF02E models if extended temperature ranges (-55°C to +125°C) are necessary. Evaluate the need for the integrated temperature sensor feature versus external sensing solutions based on board space constraints.

Part Context

The REF02 belongs to the REF01/REF02/REF03 series of precision voltage references from Analog Devices. These devices utilize an improved band gap design to achieve low noise and low power consumption. The series is designed for applications requiring stable voltage references in single-supply systems. New designs may consider the ADR02 as a modern alternative within the manufacturer's portfolio.

Replacement Considerations

Public confirmed substitute part numbers: None identified in official documentation.