Product details


VO (V) 4.096 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 6 Rating HiRel Enhanced Product Vin (Min) (V) 4.15 Vin (Max) (V) 12 Iq (Typ) (uA) 72 Features Enable pin, 4-wire output Iout/Iz (Max) (mA) 10 Operating temperature range (C) -55 to 125 Shutdown current (ISD) (Typ) (uA) 2.5 open-in-new Find other Series voltage references

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Series voltage references


  • Initial accuracy: ±0.05% (maximum)
  • Temperature coefficient: 10 ppm/°C (maximum)
  • Output current: ±10 mA
  • Low quiescent current: 95 µA (maximum)
  • Wide input voltage: 12 V
  • Output 1/f noise (0.1 Hz to 10 Hz): 3.8 µVPP/V
  • Small footprint 6-pin SOT-23 package
  • Excellent long-term stability 25 ppm/1000 hrs
  • Supports defense, aerospace, and medical applications:
    • Controlled baseline
    • One assembly/test site
    • One fabrication site
    • Available extended (–55°C to 125°C) temperature range
    • Extended product life cycle
    • Extended product-change notification
    • Product traceability
open-in-new Find other Series voltage references


The REF34xx-EP device is a low temperature drift
(10 ppm/°C), low-power, high-precision CMOS voltage reference, featuring ±0.05% initial accuracy, low operating current with power consumption less than 95 µA. This device also offers very low output noise of 3.8 µVp-p/V, which enables its ability to maintain high signal integrity with high-resolution data converters in noise critical systems. With a small SOT-23 package, REF34xx-EP offers enhanced specifications and pin-to-pin replacement for MAX607x and ADR34xx. The REF34xx-EP family is compatible to most ADC and DAC.

Stability and system reliability are further improved by the low output-voltage hysteresis of the device and low long-term output voltage drift. The small size and low operating current of the devices (95 µA) can benefit portable and battery-powered applications.

REF34xx-EP is specified for the wide temperature range of –55°C to 125°C. Contact the TI sales representative for additional voltage options.

open-in-new Find other Series voltage references

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet REF34xx-EP Low-Drift, Low-Power, Small-Footprint Series Voltage Reference datasheet (Rev. B) Apr. 18, 2019
* Radiation & reliability report REF34xx-EP Reliability Report Jan. 29, 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019

Design & development

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

Design tools & simulation

SBAM376.TSC (79 KB) - TINA-TI Reference Design
SBAM377.ZIP (21 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
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 (...)
  • 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
  • (...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options

Ordering & quality

Information included:
  • RoHS
  • 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. ​​​​​​​​​​​​​​