ADREF01HQ

Overview

The ADREF01HQ is a precision series voltage reference from Analog Devices Inc., part of the REF01 family. It provides a fixed 10V output with an initial accuracy of ±0.3%. The device features a temperature coefficient of 8.5 PPM/°C and operates within a supply voltage range of 12V to 40V. It draws a supply current of 1.4mA and delivers up to 20mA output current. Noise performance is specified at 20µVp-p in the 0.1Hz to 10Hz band. The component supports through-hole mounting in an 8-DIP package and functions across a temperature range of 0°C to +70°C.

Feature Summary

• Provides a stable 10V fixed output for high-precision applications
• Features low drift characteristics with an 8.5 PPM/°C temperature coefficient
• Supports wide input voltage operation from 12V to 40V
• Delivers high output drive capability up to 20mA

Applications

• High-resolution data acquisition systems
• Precision analog-to-digital converter (ADC) references
• Industrial process control instrumentation
• Medical equipment requiring stable voltage sources

Procurement Notes

Verify the specific suffix 'HQ' against official Analog Devices documentation to confirm exact grade, packaging, or environmental qualification details. Ensure compatibility with existing board layouts for 8-DIP packages. Confirm availability status as discontinued parts may require alternative sourcing strategies. Validate thermal management requirements for the operating temperature range.

Selection Notes

Select this component when a 10V reference is required with moderate precision and wide input voltage tolerance. Consider the 8.5 PPM/°C drift for temperature-sensitive environments. Evaluate the 1.4mA quiescent current for power-constrained designs. Compare noise specifications against system requirements for low-frequency stability.

Part Context

The ADREF01HQ belongs to the REF01 series of ultracompact precision voltage references manufactured by Analog Devices. This family includes variants offering different output voltages such as 5V, 2.5V, and 3.0V. The series is designed for applications demanding reliable performance in industrial and scientific instruments. The HQ designation typically indicates specific manufacturing lot or quality attributes defined by the manufacturer.

Replacement Considerations

Direct substitutes include REF01EN8#PBF, REF01CPZ, and REF01HPZ from Analog Devices. Verify pinout and electrical parameter equivalence before substitution.