ADR293ERZ-REEL

Overview

The ADR293ERZ-REEL is a low noise, micropower precision voltage reference providing a stable 5.00 V output. It utilizes XFET architecture for superior performance over traditional band gap references. The device operates from a 6.0 V to 15 V supply with a maximum quiescent current of 15 μA. Initial accuracy is ±0.06% (±3 mV), and the temperature coefficient is 8 ppm/°C maximum. It supports up to 5 mA load current and functions within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• XFET architecture provides significantly lower voltage noise and ultralinear temperature drift compared to band gap references.
• Micropower design with 15 μA maximum supply current ideal for battery-powered instrumentation.
• High output capability delivering up to 5 mA load current while maintaining high precision.
• Pin-compatible with REF02/REF19x series for easy system upgrades.

Applications

• Portable instrumentation
• Precision reference for 5 V systems
• ADC and DAC reference
• Solar-powered applications
• Loop-current powered instruments

Procurement Notes

Verify the specific suffix 'ERZ' indicates RoHS compliance and the '-REEL' designation confirms tape and reel packaging. Confirm the E-grade electrical specifications match the required initial accuracy and temperature coefficient for your application. Ensure the 8-lead SOIC package option aligns with your PCB footprint requirements.

Selection Notes

Select this component when a 5.0 V reference is required with high precision and low power consumption. The E-grade offers the highest accuracy (0.06%) and lowest temperature coefficient (8 ppm/°C) in the ADR293 family. Consider the XFET technology benefits if low noise and long-term stability are critical constraints.

Part Context

The ADR293 is part of Analog Devices' XFET precision voltage reference family, which includes the ADR291 (2.5 V) and ADR292 (4.096 V). These devices share similar architectural advantages, including low noise and micropower operation, but differ in output voltage and specific accuracy grades available.

Replacement Considerations

The datasheet notes pin compatibility with the REF02 and REF19x series. However, verify that the replacement meets the specific 15 μA supply current and 8 ppm/°C temperature coefficient requirements of the ADR293ERZ-REEL.

FAQ

What is the typical noise performance of the ADR293?

The ADR293 typically exhibits a low noise of 15 μV p-p in the 0.1 Hz to 10 Hz frequency band.

Is the ADR293 suitable for use as a voltage regulator?

Yes, it can be used in voltage regulator circuits for portable equipment, offering fast recovery after current surges and low output noise.