The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing current, and have excellent line and load regulation.
Excellent temperature drift (2.5ppm/°C) and high accuracy (0.025%) are achieved using proprietary design techniques. These features, combined with very low flicker noise (0.5µVPP/V), make the REF50xx family an excellent choice for use in high-precision data acquisition systems. REF50 family is available in enhanced grade (REF50xxEI), high grade (REF50xxI) and standard grade (REF50xxAI). The reference voltages are offered in 8-pin SOIC and VSSOP packages and are specified from –40°C to 125°C.
The REF50xxEI supports wide supply voltage rating of 42V with ultra-low IQ of 280µA. The wide supply range allows for direct connection to the battery or field supply. This also protects the device in case of power supply IC failure.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | REF50xx Low-Noise, Very Low Drift, Wide VIN Precision Voltage Reference datasheet (Rev. L) | PDF | HTML | 18 Oct 2024 |
| Application note | Voltage Reference Selection and Design Tips For Data Converters (Rev. B) | PDF | HTML | 09 Jan 2024 | |
| Application note | Analog Time Gain Control (ATGC) Solutions for TI’s Ultrasound AFE | PDF | HTML | 18 May 2023 | |
| Application note | Stacking the REF50xx for High-Voltage References (Rev. B) | PDF | HTML | 25 Apr 2023 | |
| E-book | Tips and tricks for designing with voltage references (Rev. A) | 07 May 2021 | ||
| Application note | Long-Term Drift in Voltage References | PDF | HTML | 25 Mar 2021 | |
| Application note | Low-Noise Negative Reference Design with REF5025 | 01 Dec 2019 | ||
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 | ||
| White paper | Voltage reference selection basics white paper (Rev. A) | 23 Oct 2018 | ||
| Application brief | Level Shifting Signals With Differential Amplifiers (Rev. A) | 02 Apr 2018 |
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 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.