REF02CZ

Overview

The REF02CZ is a precision voltage reference and temperature transducer manufactured by Analog Devices Inc. It provides a stable 5 V output with an initial accuracy of ±1% (±50 mV). The device features a maximum temperature coefficient of 65 ppm/°C over the commercial operating range of 0°C to 70°C. It operates on a single supply voltage ranging from 7 V to 40 V, drawing a quiescent current of up to 1.6 mA. The unit delivers a load current of 8 mA and includes a dedicated temperature monitoring pin with a sensitivity of approximately 1.96 mV/°C.

Feature Summary

• Integrated monolithic band gap design providing high stability without external components
• Dedicated temperature sensing terminal for system thermal monitoring applications
• Short-circuit proof output capability ensuring protection against ground faults
• Adjustable output voltage via trim terminal to compensate for system errors

Applications

• Digital voltmeters requiring precise reference standards
• Portable instrumentation systems needing low power consumption
• Data acquisition circuits utilizing DACs and ADCs
• Temperature monitoring and control subsystems

Procurement Notes

Verify that the specific part number matches the required package suffix Z for ceramic dual in-line configuration. Confirm the temperature grade C aligns with the intended operational environment limits of 0°C to 70°C. Ensure compatibility with single-supply voltages between 7 V and 40 V. Check for RoHS compliance status if environmental regulations apply to the manufacturing process.

Selection Notes

Select this component when a fixed 5 V reference with moderate precision is sufficient for the application. Consider the REF02CZ for designs prioritizing cost-effectiveness over ultra-low drift specifications. Evaluate the 8 mA load current limit against circuit requirements. Use the trim function if minor voltage adjustments are necessary to meet system tolerances.

Part Context

The REF02 series represents a family of precision voltage references designed for general-purpose analog applications. The REF02CZ variant specifically targets commercial temperature ranges and offers a balance of performance and affordability. It serves as a foundational component for establishing accurate voltage levels in mixed-signal systems where stability over time and temperature is critical.

Replacement Considerations

Public confirmed substitute part numbers: REF02CSZ, REF02CPZ.