The REF33xx is a low-power, precision, low-dropout voltage reference family available in tiny SC70-3 and SOT-23-3 packages, and in a 1.5-mm × 1.5-mm UQFN-8 package. Small size and low power consumption (5-µA max) make the REF33xx ideal for a wide variety of portable and battery-powered applications.
The REF33xx can be operated at a supply voltage 180 mV above the specified output voltage under normal load conditions, with the exception of the REF3312, which has a minimum supply voltage of 1.7 V. All models are specified for the wide temperature range of –40°C to +125°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | REF33xx 3.9-μA, SC70-3, SOT-23-3, and UQFN-8, 30-ppm/°C Drift Voltage Reference datasheet (Rev. H) | PDF | HTML | 16 Jan 2018 |
| Technical article | Accurately measure vital signs with low Iq and a small form factor (Rev. B) | PDF | HTML | 18 Apr 2024 | |
| Application note | Voltage Reference Selection and Design Tips For Data Converters (Rev. B) | PDF | HTML | 09 Jan 2024 | |
| E-book | Tips and tricks for designing with voltage references (Rev. A) | 07 May 2021 | ||
| White paper | Simplifying Signal Chain Design for High Performance in Small Systems | 22 Oct 2020 | ||
| Functional safety information | REF33xx Functional Safety FIT Rate and Failure Mode Distribution | 18 Dec 2019 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 | ||
| Application note | Diode-Based Temperature Measurements (Rev. A) | 17 May 2019 | ||
| White paper | Voltage reference selection basics white paper (Rev. A) | 23 Oct 2018 | ||
| Analog Design Journal | Getting the most out of your instrumentation amplifier design | 10 Oct 2005 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| SOT-SC70 (DCK) | 3 | Ultra Librarian |
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