REF02HP

Overview

The REF02HP is a precision series voltage reference IC manufactured by Analog Devices Inc. It provides a fixed 5V output with an initial accuracy of ±0.5%. The device operates within an input voltage range of 8V to 36V and draws a supply current of 1.4mA. It features a temperature coefficient of 25ppm/°C and low noise characteristics, specified at 15µVp-p from 0.1Hz to 10Hz. Designed for through-hole mounting, it is housed in an 8-PDIP package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Delivers a stable 5V reference voltage with high initial accuracy
• Maintains performance over wide input voltage variations
• Exhibits low noise and stable temperature coefficients

Applications

• Precision analog-to-digital converter (ADC) reference sources
• High-accuracy digital-to-analog converter (DAC) references
• Calibration equipment requiring stable voltage standards
• Instrumentation amplifier biasing circuits

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as REF02HPZ indicate lead-free compliance. Confirm package type availability, as surface mount or ceramic options may differ from the standard plastic DIP. Check manufacturer documentation for any recent product change notices that might affect pinout or electrical specifications compared to legacy versions.

Selection Notes

Select this component when a fixed 5V output is required with tight tolerance specifications. Ensure the application input voltage remains within the 8V to 36V operational window. Consider the thermal environment, as the 25ppm/°C coefficient dictates long-term stability requirements. Verify that the through-hole packaging aligns with the target PCB assembly process.

Part Context

The REF02HP belongs to the REF02 family of precision voltage references from Maxim Integrated, now part of Analog Devices. This series is engineered for applications demanding high stability and low drift. The HP variant specifically denotes the plastic DIP package version with ±0.5% accuracy, distinguishing it from other package styles or tolerance grades within the same functional family.

Replacement Considerations

REF02HPZ serves as the direct lead-free equivalent. REF02DN8 offers similar functionality but with lower ±2% accuracy and different thermal characteristics.