REF02CJ8

Overview

The REF02CJ8 is a precision 5V bandgap voltage reference housed in an 8-lead ceramic dual in-line package (CERDIP). It provides a stable output with ±0.3% accuracy and a maximum temperature coefficient of 8.5 ppm/°C over the commercial operating range of 0°C to 70°C. The device features a dedicated temperature output pin delivering a linear voltage proportional to absolute temperature, low supply current of 1.4 mA maximum, and high line rejection. It supports a wide input voltage range from 7 V to 40 V and includes short-circuit protection.

Feature Summary

• Provides a precise 5V output with ±0.3% initial accuracy
• Includes a dedicated pin for linear temperature sensing
• Operates with low quiescent current consumption
• Features internal short-circuit protection

Applications

• A/D and D/A converters
• Precision regulators
• Constant current sources
• Bridge excitation circuits

Procurement Notes

Verify the specific ordering suffix and lead finish when sourcing this component. Confirm that the CERDIP package matches the required hermetic or non-hermetic specifications for the target environment. Ensure the commercial temperature grade meets the operational requirements. Cross-reference the manufacturer part number against current availability lists as legacy components may have limited stock or alternative sourcing channels.

Selection Notes

Select this component for applications requiring moderate accuracy and low power consumption. The integrated temperature output simplifies thermal monitoring without additional sensors. Consider the CERDIP package for through-hole mounting needs. Evaluate the 8.5 ppm/°C drift specification against system stability requirements. Compare against higher precision alternatives if tighter tolerance is necessary.

Part Context

This component belongs to the REF-01/REF-02 family of precision voltage references manufactured by Analog Devices (formerly Linear Technology). The series offers both 10V and 5V options with varying accuracy grades. The REF02 variant specifically provides the 5V output and temperature sensing capability. The J8 suffix denotes the ceramic DIP package suitable for robust industrial environments.

Replacement Considerations

The REF02DN8#PBF is listed as a direct substitute. For improved performance, the LT1019 is recommended as a pin-compatible alternative with lower drift.