REF02DN8

Overview

The REF02DN8 is a precision voltage reference IC from the REF-02 series, manufactured by Analog Devices Inc. It provides a fixed 5V output with a tolerance of ±2%. The device operates within an input voltage range of 7V to 40V and draws a maximum quiescent supply current of 2mA. It features a low noise profile of 12µVp-p in the 0.1Hz to 10Hz frequency band and exhibits a temperature coefficient of 250ppm/°C. Designed for through-hole mounting, it utilizes an 8-pin PDIP package and functions reliably across a commercial operating temperature range of 0°C to 70°C.

Feature Summary

• Provides stable 5V output via bandgap reference technology
• Includes dedicated temperature output pin for linear voltage proportional to absolute temperature
• Supports high line rejection and low power consumption
• Capable of sourcing up to 20mA load current

Applications

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

Procurement Notes

Verify component authenticity and datasheet revision status before integration. Confirm that the specific DN8 suffix corresponds to the required 8-lead plastic DIP package and 0°C to 70°C temperature grade. Ensure design margins accommodate the specified 250ppm/°C temperature coefficient and 2% initial accuracy limits for the target application environment.

Selection Notes

Select this component when moderate accuracy and low cost are prioritized over ultra-low drift specifications. The REF02DN8 is suitable for applications requiring a fixed 5V reference with minimal supply current draw. Consider alternative grades such as the REF02HN8 or REF02AZ if tighter tolerances or wider temperature ranges are necessary for the system requirements.

Part Context

The REF02DN8 belongs to the REF-01/REF-02 family of precision voltage references originally developed by Linear Technology Corporation, now part of Analog Devices Inc. This series is designed to offer stable output voltages over wide operating conditions. The REF-02 variant specifically includes a temperature output feature, distinguishing it from the REF-01 model which lacks this pin.

Replacement Considerations

REF02HN8#PBF is listed as a direct substitute. REF02HPZ is identified as a similar alternative option.