A newer version of this product is available

open-in-new Compare products
Same functionality with different pin-out to the compared device.
NEW REF35 ACTIVE 650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference 680-nA ultra-low-power, wide OTP programmable-voltage option from 1.024 V to 5 V and high precision at 0.05% intial accuracy and 6ppm/°C drift.

Product details

VO (V) 3 Initial accuracy (Max) (%) 0.15 Temp coeff (Max) (ppm/ degree C) 30 Vin (Min) (V) 3.2 Vin (Max) (V) 5.5 Iq (Typ) (uA) 3.9 Rating Catalog Iout/Iz (Max) (mA) 5
VO (V) 3 Initial accuracy (Max) (%) 0.15 Temp coeff (Max) (ppm/ degree C) 30 Vin (Min) (V) 3.2 Vin (Max) (V) 5.5 Iq (Typ) (uA) 3.9 Rating Catalog Iout/Iz (Max) (mA) 5
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 SOT-SC70 (DCK) 3 3 mm² 2 x 1.3 UQFN (RSE) 8 2 mm² 2 x 1.5
  • 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
  • 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

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.

 

 

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.

 

 

Download

Similar products you might be interested in

open-in-new Compare products
Same functionality with different pin-out to the compared device.
REF3430 ACTIVE 3-V, low-drift, low-power, small-footprint series voltage reference Better accuracy & temperature coefficient

Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

BOOST-ADS7042 — ADS7042 Ultra-Low Power Data Acquisition BoosterPack

The ADS7042 Ultra-Low Power Data Acquisition BoosterPack is a stand-alone system that converts analog sensor data into digital SPI data using the TI ADS7042 Successive Approximation Register Analog-to-Digital Converter.  This BoosterPack has been designed to be compatible with the TI (...)

User guide: PDF
Not available on TI.com
Evaluation board

DIP-ADAPTER-EVM — DIP adapter evaluation module

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 (...)

User guide: PDF
Not available on TI.com
Simulation model

REF3330 PSpice Model (Rev. A)

SBOM242A.ZIP (36 KB) - PSpice Model
Simulation model

REF3330 TINA-TI Reference Design (Rev. A)

SBOM243A.TSC (106 KB) - TINA-TI Reference Design
Simulation model

REF3330 TINA-TI Spice Model (Rev. A)

SBOM244A.ZIP (6 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Reference designs

TIDA-00119 — 12-Bit, 8 Channel, Integrated Analog Input module for Programmable Logic Controllers (PLC)

TIDA-00119  is a complete, highly-integrated PLC analog input module front-end reference design that is designed and tested to meet IEC61000-4 standards for industrial automation systems. The design can be configured for 4 differential inputs or 8 single-ended inputs with 12-bit ADC resolution (...)
User guide: PDF
Schematic: PDF
Reference designs

TIPD116 — Data Acquisition Block for ECG Systems, discrete LEAD I ECG implementation Reference Design

This TI Verified Design is for Electrocardiography (ECG), the measurement of the electrical activity of the heart, a method that requires a precision analog front end instrumentation gain stage, filtering, and high resolution digital conversion. This design features the methodology for achieving a (...)
User guide: PDF
Schematic: PDF
Reference designs

TIPD154 — Low-Power Reference and Bipolar Voltage Conditioning Circuit Reference Design for Low-Power ADCs

This TI Precision Verified Design provides the theory, component selection, and simulation for a single-supply, low-power signal conditioning circuit designed to translate a +/-5 V input signal to the proper input range of a single-supply low-power 16-Bit ΔΣ ADC such as the one inside (...)
User guide: PDF
Schematic: PDF
Package Pins Download
SC70 (DCK) 3 View options
SOT-23 (DBZ) 3 View options
UQFN (RSE) 8 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. ​​​​​​​​​​​​​​

Videos