3.3-V, 30-ppm/°C drift, 3.9-µA, 3-pin SOT-23, 3-pin SC70, 8-pin UQFN voltage reference
Product details
Parameters
Package | Pins | Size
Features
- Microsize Packages: SC70-3, SOT-23-3, UQFN-8
- Low Supply Current: 3.9 µA (typ)
- Extremely Low Dropout Voltage: 110 mV (typ)
- High Output Current: ±5 mA
- Low Temperature Drift: 30 ppm/°C (max)
- High Initial Accuracy: ±0.15% (max)
- 0.1-Hz to 10-Hz Noise: 35 µVPP (REF3312)
- Voltage Options: 1.2 V, 1.8 V, 2.5 V, 3 V, 3.3 V
All trademarks are the property of their respective owners.
Description
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.
Technical documentation
= Top documentation for this product selected by TI
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | REF33xx 3.9-μA, SC70-3, SOT-23-3, and UQFN-8, 30-ppm/°C Drift Voltage Reference datasheet (Rev. H) | Jan. 16, 2018 |
| Functional safety information | REF33xx Functional Safety FIT Rate and Failure Mode Distribution | Dec. 18, 2019 | |
| Application note | Voltage Reference Design Tips For ADC Pairing | Nov. 05, 2019 | |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun. 28, 2019 | |
| Application note | Diode-Based Temperature Measurements (Rev. A) | May 17, 2019 | |
| White paper | Voltage reference selection basics white paper (Rev. A) | Oct. 23, 2018 | |
| Selection guide | Current Sense Amplifiers (Rev. D) | Apr. 04, 2018 | |
| Application note | Level Shifting Signals With Differential Amplifiers (Rev. A) | Apr. 02, 2018 | |
| Technical articles | Accurately measure vital signs with low Iq and a small form factor | Mar. 28, 2018 | |
| E-book | Tips and tricks for designing with voltage references | May 30, 2017 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
BOOSTXL-3PHGANINV
Description
The BOOSTXL-3PHGANINV evaluation module features a 48-V/10-A three-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives.
Features
- Wide Input Voltage Range 12-V to 60-V Three Phase GaN Inverter with 7-ARMS Output Current per Phase
- High Accuracy Phase Current Sensing Over Temperature Range From –25°C to 85°C
- Precision In-Line Phase Current Sensing
- TI BoosterPack Compatible Interface
Get started
- See the Get Started sections of (...)
DIP-ADAPTER-EVM
Description
Speed up your op amp prototyping and testing with the 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 directly to existing circuits.
The (...)
Features
- Simplifies prototyping of SMT IC’s
- Supports 6 common package types
- Low Cost
Design tools & simulation
SBOM245A.ZIP (36 KB) - PSpice Model
SBOM246A.TSC (107 KB) - TINA-TI Reference Design
SBOM247A.ZIP (6 KB) - TINA-TI Spice Model
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
TIDA-00913 — The TIDA-00913 reference design realizes a 48V/10A 3-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives. One of the largest challenges with in-line shunt-based phase current sensing is the high common-mode voltage (...)
Design files
-
download TIDA-00913 BOM.pdf (72KB) -
download TIDA-00913 Assembly Drawing.pdf (554KB) -
download TIDA-00913 PCB.pdf (2813KB) -
download TIDA-00913 CAD Files.zip (5637KB) -
download TIDA-00913 Gerber.zip (1217KB)
TIDA-00909 — Low voltage, high-speed drives and/or low inductance brushless motors require higher inverter switching frequencies in the range of 40 kHz to 100 kHz to minimize losses and torque ripple in the motor. The TIDA-00909 reference design achieves that by using a 3-phase inverter with three 80V/10A (...)
Design files
-
download TIDA-00909 BOM.pdf (72KB) -
download TIDA-00909 Assembly Drawing.pdf (554KB) -
download TIDA-00909 PCB.pdf (2813KB) -
download TIDA-00909 CAD Files.zip (5846KB) -
download TIDA-00909 Gerber.zip (1218KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SC70 (DCK) | 3 | View options |
| SOT-23 (DBZ) | 3 | View options |
Ordering & quality
Information included:
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
TI E2E™ forums with technical support from TI engineers
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.