REF01HQ

Overview

The REF01HQ is a precision series voltage reference IC manufactured by Analog Devices Inc. It provides a fixed output voltage of 10V with an initial accuracy tolerance of ±0.5%. The device operates within a supply voltage range of 13V to 33V and supports a maximum shunt current of 21 mA. It features a temperature coefficient of 25 ppm/°C and low noise characteristics, specified as 20 µVp-p in the 0.1Hz to 10Hz frequency band. The component is housed in an 8-CDIP package with a width of 0.300 inches (7.62mm) and is designed for through-hole mounting. It functions within a standard operating temperature range of 0°C to +70°C.

Feature Summary

• Delivers a stable 10V fixed output via series regulation architecture
• Maintains high precision with ±0.5% initial accuracy tolerance
• Ensures thermal stability with a low temperature coefficient of 25 ppm/°C
• Provides low-noise performance suitable for sensitive analog circuits

Applications

• Precision data acquisition systems requiring stable reference voltages
• High-resolution analog-to-digital converter (ADC) references
• Instrumentation amplifier biasing and calibration
• Test and measurement equipment internal references

Procurement Notes

Verify the specific suffix 'HQ' corresponds to the 8-CDIP package and bulk packaging configuration when sourcing. Confirm that the manufacturer designation matches Analog Devices Inc., as Maxim Integrated branding may appear on legacy documentation. Ensure the order specifies the correct pinout for the CDIP-8 footprint to avoid integration errors during PCB assembly.

Selection Notes

Select this component when a fixed 10V reference is required with moderate precision and through-hole compatibility. Compare against the REF01EN8 if higher accuracy (±0.3%) or lower temperature drift (8.5 ppm/°C) is necessary, noting the package difference. Consider the REF01HSA+ for surface-mount applications requiring similar electrical characteristics but in an SOIC package.

Part Context

The REF01HQ belongs to the REF01 family of precision voltage references from Analog Devices. This series is widely recognized for its reliability in industrial and scientific applications. The HQ variant specifically denotes the ceramic dual in-line package (CDIP) option, distinguishing it from plastic DIP or surface-mount variants within the same product line.

Replacement Considerations

Direct substitutes include REF01EN8#PBF for improved accuracy in a PDIP package. For equivalent performance in a different package style, consider REF01HSA+ for surface mount or REF01CPZ for plastic DIP options.