The REF31xx is a family of precision, low power, low dropout, series voltage references available in the tiny 3-pin SOT-23 package.
The small size and low power consumption of the device (100µA typical) are designed for portable and battery-powered applications. The REF31xx does not require a load capacitor and can sink or source up to 10mA of output current.
Unloaded, the REF31xx can operate on supplies down to 5mV above the output voltage. All models are specified for the wide temperature range from –40°C to +125°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | REF31xx 15ppm/°C Maximum, 100µA, SOT-23 Series Voltage Reference datasheet (Rev. E) | PDF | HTML | Apr 9, 2026 |
| Application note | Voltage Reference Selection and Design Tips For Data Converters (Rev. B) | PDF | HTML | Jan 9, 2024 | |
| E-book | Tips and tricks for designing with voltage references (Rev. A) | May 7, 2021 | ||
| Application brief | Voltage Reference Solutions in Motor Control Drives | Jul 29, 2019 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun 28, 2019 | ||
| White paper | Voltage reference selection basics white paper (Rev. A) | Oct 23, 2018 | ||
| Analog design Journal | Getting the most out of your instrumentation amplifier design | Oct 10, 2005 | ||
| Application note | High-Voltage Signal Conditioning for Differential ADCs | Jun 14, 2004 |
For additional terms or required resources, click any title below to view the detail page where available.
Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| — (—) | — |
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