The ADR293 is a low noise, micropower precision voltage reference that utilizes an XFET™ (eXtra implanted junction FET) reference circuit. The new XFET architecture offers significant performance improvements over traditional bandgap and Zener-based references. Improvements include: one-fourth the power, ten times the noise performance (15 μV p-p), ten times the linearity (0.01%), 150 times the dynamic range, and 100 times the output current (5 mA).
The ADR293 is a low noise, micropower precision voltage reference utilizing an XFET™ (eXtra implanted junction FET) reference circuit. It provides stable output voltages ranging from 5.0 V to 15 V with quiescent currents as low as 15 µA max, making it ideal for battery-powered instrumentation and portable applications.
The device is available in three electrical grades (E, F, G) offering initial accuracy of ±3 mV, ±6 mV, and ±10 mV respectively. It operates over an extended industrial temperature range of –40 °C to +125 °C and comes in 8-Lead Narrow Body SO, 8-Lead TSSOP, and 3-Lead TO-92 package types.
| Nominal Output Voltage | 5.0 V |
|---|---|
| Initial Accuracy (Grade E) | ±3 mV |
| Temperature Coefficient (Grade E) | 8 ppm/°C |
| Low Noise | 15 µV p-p Typ (0.1 Hz to 10 Hz) |
| Operating Temperature Range | -40°C to +125°C |
The ADR293 provides a nominal output voltage of 5.0 V.
The maximum supply current is 15 µA.
The device operates from –40 °C to +125 °C.