The REF81 device utilizes precision buried zener core with integrated heater to generate stable 7.6V. The device further integrates precision resistor dividers and a buffer to offer industry standard voltage references to drive precision data converters. Integrated temperature control with an internal heater enables the reference voltage stay constant irrespective of ambient temperature variations and achieve extremely low temperature drift of 0.05ppm/°C. The integration of control loop, precision resistances and buffer enables ease of design and eliminates need of external precision components.
The REF81 family is available in a 20-pin LCCC package. The LCCC package is a hermetically sealed ceramic package that enables ultra low long-term stability specification of 1ppm, critical for applications that demand a longer operational window without calibration. The package also offers excellent immunity against humidity variation.
The full data sheet and other documents are available. Request now
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | REF81 Temperature Controlled Precision Voltage Reference with 0.05ppm/°C Temperature Drift and < 1ppm Stability datasheet | PDF | HTML | 29 Jul 2025 |
| Technical article | The benefits of extreme precision from buried Zener technology in calibration (Rev. B) | PDF | HTML | 26 Sep 2025 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| LCCC (NAJ) | 20 | Ultra Librarian |
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