ADR293FR

Voltage Reference Overview

The ADR293FR is a low noise, micropower precision voltage reference providing a stable 5.0 V output. It utilizes XFET architecture for superior performance over traditional band gap references. The device operates with a supply range of 6.0 V to 15 V and draws a maximum supply current of 15 μA. It features an initial accuracy of ±6 mV (0.12%) and a maximum temperature coefficient of 15 ppm/°C at 25°C. The unit supports high output currents up to 5 mA and functions within an extended industrial temperature range of −40°C to +125°C.

Voltage Reference Feature Summary

• Utilizes XFET architecture for low noise and ultralinear temperature drift
• Micropower consumption suitable for battery-powered instrumentation
• High output current capability of 5 mA
• Pin-compatible with REF02/REF19x series

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'F' corresponds to the required electrical grade regarding initial accuracy and temperature coefficient before ordering. Confirm package availability in SOIC-8 or TSSOP formats as needed. Ensure supply voltage constraints align with the minimum 6.0 V requirement for proper regulation.

Voltage Reference Selection Notes

Select this component when a 5.0 V reference with low noise and micropower operation is required. Consider the F grade specifications for accuracy and drift if tighter tolerances are not necessary. Evaluate thermal dissipation requirements if operating near maximum load currents or high ambient temperatures.

Voltage Reference Part Context

The ADR293 belongs to the ADR29x family of precision voltage references from Analog Devices. This family includes variants with different output voltages such as 2.5 V and 4.096 V. All members share the same XFET-based core technology, offering improved stability and lower noise compared to standard band gap references.

Voltage Reference Replacement Considerations

The datasheet indicates pin-compatibility with the REF02 and REF19x series. Verify that substitute parts meet the specific 5.0 V output and XFET-derived noise characteristics required for the application.