ADR293GR

Overview

The ADR293GRZ is a low noise, micropower precision voltage reference providing a stable 5.0 V output from a 6.0 V to 15 V supply range. It utilizes XFET architecture for superior performance over traditional band gap references. The device offers an initial accuracy of ±0.20% and a maximum temperature coefficient of 25 ppm/°C. Quiescent current is limited to 15 μA maximum, supporting battery-powered applications. It delivers up to 5 mA load current with low thermal hysteresis and operates across the extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Utilizes XFET architecture for ultralinear temperature drift and low thermal hysteresis
• Provides high output current capability of 5 mA with minimal quiescent power consumption
• Features pin-compatible design with legacy REF02 and REF19x series components

Applications

• Portable instrumentation systems requiring stable reference voltages
• Precision analog-to-digital converter (ADC) and digital-to-analog converter (DAC) references
• Solar-powered equipment and loop-current powered instruments

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide to confirm package type and reel quantity. Ensure RoHS compliance requirements are met by checking for the Z designation in the part number. Confirm that the selected grade meets the required initial accuracy and temperature coefficient specifications for the target application environment.

Selection Notes

Select the ADR293GRZ when a 5.0 V precision reference is needed with low power consumption and high stability. Consider the XFET technology benefits regarding noise and long-term stability compared to standard band gap references. Evaluate the thermal resistance characteristics of the SOIC-8 package for heat dissipation if operating near maximum junction temperatures.

Part Context

The ADR293 belongs to the Analog Devices ADR29x family of micropower precision voltage references. This family includes variants with different output voltages such as 2.5 V and 4.096 V. The GRZ variant specifically denotes the G-grade accuracy level packaged in an 8-lead narrow body SOIC format compliant with JEDEC standards.

Replacement Considerations

The datasheet explicitly states the device is pin-compatible with the REF02 and REF19x series. Designers replacing these legacy components should verify that the input voltage range and load regulation specifications of the ADR293 meet the system requirements previously satisfied by the older references.