ADR02ARZ-REEL7

Overview

The ADR02ARZ-REEL7 is a precision series voltage reference from Analog Devices, delivering a fixed 5.0 V output with an initial accuracy of ±0.1%. It features a low temperature coefficient of 10 ppm/°C and operates within a supply voltage range of 7.0 V to 36.0 V. The device provides a maximum load current of 10 mA and consumes only 1 mA of quiescent current. It exhibits a line regulation of 30 ppm/V and a load regulation of 70 ppm/mA. Noise performance is specified at 10 µV p-p over the 0.1 Hz to 10 Hz frequency band. The component is housed in an 8-pin NSOIC package and supports an extended operating temperature range from -40°C to +125°C.

Feature Summary

• Features a bandgap voltage reference architecture with integrated external buffer and simple resistor network for high stability.
• Includes dedicated TEMP pin for temperature sensing and TRIM pin for precise output voltage adjustment.
• Delivers high output current capability without requiring external capacitors for stability.

Applications

• Precision data acquisition systems
• High-resolution analog-to-digital converters
• Industrial process control instrumentation
• Automatic battery monitoring circuits

Procurement Notes

Verify the specific suffix REEL7 confirms reel packaging configuration when sourcing. Ensure the ADR02ARZ variant matches the required 8-pin SOIC footprint and thermal characteristics. Confirm that the 10 ppm/°C temperature coefficient meets system drift requirements across the full -40°C to +125°C operating range. Validate input voltage constraints between 7.0 V and 36.0 V against the power supply design.

Selection Notes

Select this component when a fixed 5.0 V reference with ±0.1% initial accuracy is required. It is suitable for designs needing low quiescent current of 1 mA and high output drive capability of 10 mA. Consider the 8-pin SOIC package for board space availability. Evaluate the 10 ppm/°C temperature coefficient against stricter drift requirements where lower coefficients like those in the ADR01 or ADR425 series might be necessary.

Part Context

This part belongs to the ADR02 series of ultra-small precision voltage references manufactured by Analog Devices. It serves as a direct replacement for industry-standard REF02 devices while offering improved performance metrics. The series is designed for applications demanding high accuracy and stability in compact form factors, utilizing either 8-pin SOIC or smaller 5-pin SC70/TSOT packages depending on the specific model variant.

Replacement Considerations

The ADR02ARZ is documented as a direct replacement for the REF02 standard. Verify pinout compatibility and thermal resistance differences if substituting into existing REF02 footprints. Check if tighter tolerance or lower noise specifications require upgrading to the ADR425 or ADR01 series instead.