Ultraprecision XFET voltage reference provides a 5.000 V nominal output with B-grade initial accuracy of ±2 mV and ±0.04%. The reference operates from a 7 V to 18 V input range and is specified over the −40°C to +125°C extended industrial temperature range. Low-noise performance includes 3.4 µV p-p noise from 0.1 Hz to 10 Hz and 110 nV/√Hz noise density at 1 kHz. The device supports up to 10 mA output current, 0.5 mA maximum quiescent current at 25°C, and output trimming over a ±0.5% range.
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| Output voltage | 5.000 typV |
| Output voltage range, B grade | 4.998 to 5.002V |
| Initial accuracy, B grade | ±2mV |
| Initial accuracy, B grade | ±0.04% |
| Temperature coefficient, B grade | 1 typ, 3 maxppm/°C |
| Input voltage range | 7 to 18V |
| Supply voltage headroom | 2V |
| Line regulation | 10 typ, 35 maxppm/V |
| Load regulation | 70 maxppm/mA |
| Quiescent current, no load | 390 typ, 500 maxµA |
| Quiescent current over temperature | 600 maxµA |
| Output current | 10mA |
| Voltage noise, 0.1 Hz to 10 Hz | 3.4 typµV p-p |
| Voltage noise density at 1 kHz | 110 typnV/√Hz |
| Turn-on settling time | 10 typµs |
| Long-term stability | 50 typppm/1000 h |
| Output voltage hysteresis | 40 typppm |
| Ripple rejection ratio at 1 kHz | -75 typdB |
| Operating temperature range | -40 to +125°C |
| Trim adjustment range | ±0.5% |
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