REF02HPZ

Overview

The REF02HPZ is a precision series voltage reference integrated circuit 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 exhibits low noise, specified at 15µVp-p from 0.1Hz to 10Hz. The component supports a maximum output current of 10mA and functions reliably across a junction temperature range of -40°C to 85°C. It is housed in an 8-pin PDIP package designed for through-hole mounting.

Feature Summary

• Delivers high-precision fixed voltage regulation with tight initial tolerance specifications.
• Ensures stable performance over varying thermal conditions through controlled temperature coefficients.
• Maintains signal integrity with low low-frequency noise characteristics suitable for sensitive analog circuits.

Applications

• Precision data acquisition systems requiring stable reference voltages
• High-resolution analog-to-digital converter (ADC) references
• Calibration equipment needing accurate voltage standards

Procurement Notes

Verify the specific suffix HPZ indicates lead-free packaging compliant with RoHS directives when sourcing. Confirm the 8-PDIP package dimensions match your PCB footprint requirements. Ensure the input voltage supplied remains within the 8V to 36V operational window to maintain regulation. Check for any recent product change notices regarding manufacturing site transfers that may affect long-term availability or minor parameter shifts.

Selection Notes

Select this component when a fixed 5V reference with ±0.5% accuracy is required. It is suitable for applications demanding lower noise than standard references but where ultra-low drift is not critical. Consider the 10mA output capability against load requirements. Compare against REF02DN8 if higher output current is needed, or REF02EZ for tighter accuracy and lower temperature coefficients.

Part Context

The REF02HPZ belongs to the REF02 family of three-terminal series voltage references from Analog Devices. This family includes variants like REF01 (10V), REF02 (5V), and REF03 (2.5V). The HPZ suffix typically denotes a lead-free, halogen-free version in an 8-pin plastic DIP package. These devices are designed to replace older discrete zener-based references, offering improved stability and lower noise in a compact form factor.

Replacement Considerations

REF02DN8 offers similar functionality but with ±2% accuracy and 20mA output current. REF02EZ provides higher precision with ±0.3% accuracy and lower temperature coefficient. Verify pin compatibility and thermal performance when substituting these alternatives.