REF02AZ/883C

Overview

The REF02AZ/883C is a precision bipolar voltage reference IC manufactured by Analog Devices Inc. It provides a fixed nominal output voltage of 5V with an initial accuracy tolerance of ±0.3%. The device features a maximum voltage temperature coefficient of 8.5 ppm/°C and operates within a supply voltage range of 8V to 36V. It draws a typical supply current of 1.4mA and supports a maximum output current of 10 mA. The component is housed in an 8-pin ceramic dual in-line package (CDIP) with a pin pitch of 2.54 mm. It is qualified for military standards, including MIL-STD-883B, and functions reliably across an extended temperature range from -55°C to +125°C.

Feature Summary

• Military-grade qualification compliant with MIL-STD-883B standards for high-reliability applications
• High precision performance with low temperature drift and tight initial accuracy tolerance
• Robust bipolar technology construction suitable for harsh environmental conditions

Applications

• Precision analog-to-digital converter reference sources
• High-stability instrumentation amplifier references
• Temperature sensor circuits requiring stable bias voltages
• Calibration equipment requiring long-term stability

Procurement Notes

Verify the specific suffix designation /883C against the manufacturer's latest datasheet to confirm exact screening levels and testing requirements. Ensure that the ceramic DIP package compatibility matches the target PCB footprint and thermal management strategy. Confirm RoHS compliance status as historical military parts may have different regulatory classifications than commercial equivalents. Validate that the operating temperature range meets the specific environmental constraints of the end application.

Selection Notes

Select this component when military reliability and high precision are required simultaneously. The bipolar technology offers robustness against certain transient conditions compared to CMOS alternatives. Consider the through-hole mounting requirement and larger package size relative to modern surface-mount options. Evaluate the 1.4mA quiescent current against power budget constraints in battery-operated or low-power systems where lower consumption might be preferred.

Part Context

The REF02 series represents a family of precision voltage references known for their stability and accuracy. The AZ variant specifically denotes the ceramic DIP packaging option, which provides superior hermeticity and mechanical strength compared to plastic packages. This form factor is often selected for aerospace, defense, and industrial applications where long-term reliability under extreme temperatures and vibration is critical. The part is part of Analog Devices' legacy portfolio maintained for specialized markets.

Replacement Considerations

Public confirmed substitute part numbers: None identified.