The ADR293 is a low noise, micropower precision voltage reference that utilizes an XFET® technology.
The ADR293 is a low‑noise, micropower precision voltage reference that operates from a 6 V to 15 V supply. It is designed for portable instrumentation, ADC/DAC references, solar‑powered applications, and loop‑current powered instruments. The device offers three electrical grades (E, F, G) with initial output accuracies of ±3 mV, ±6 mV, and ±10 mV respectively.
Key specifications include a supply current of only 15 pA (max), output voltage of 5.000 V (typical), temperature range of –40 °C to +125 °C, noise voltage of 15 µV p‑p (0.1 Hz–10 Hz), line regulation of 30 ppm/V (typical), and load regulation of 30 ppm/mA (typical). The device is available in 8‑lead SOIC and 8‑lead TSSOP packages.
| Supply current | 15 pA max |
|---|---|
| Output voltage (typical) | 5.000 V |
| Initial accuracy (E grade) | ±3 mV |
| Operating temperature range | –40 °C to +125 °C |
| Noise voltage (0.1 Hz–10 Hz) | 15 µV p‑p |
| Line regulation (typical) | 30 ppm/V |
| Load regulation (typical) | 30 ppm/mA |
The ADR293 draws a maximum supply current of 15 pA.
It operates from –40 °C up to +125 °C.
The typical output voltage is 5.000 V.
It exhibits 15 µV peak‑to‑peak noise between 0.1 Hz and 10 Hz.