text.skipToContent text.skipToNavigation


4.1-V low-drift low-power small-footprint series voltage reference

NEW - Custom reel may be available
Inventory: 8,442  

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
View or download

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (℃)
SOT-23 (DBV) | 6 3,000 | LARGE T&R
Custom reel may be available
-40 to 125
Package | Pins SOT-23 (DBV) | 6
Package qty | Carrier: 3,000 | LARGE T&R
Custom reel may be available
Operating temperature range (℃) -40 to 125
View TI packaging information

Features for the REF3440

  • Initial Accuracy: ±0.05% (Maximum)
  • Temperature Coefficient : 6 ppm/°C (Maximum)
  • Operating Temperature Range: −40°C to +125°C
  • 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
  • Excellent Long-Term Stability 25 ppm/1000 hrs
  • Small Footprint 6-Pin SOT-23 Package

All trademarks are the property of their respective owners.

Description for the REF3440

The REF34xx device is a low temperature drift
(6 ppm/°C), low-power, high-precision CMOS voltage reference, featuring ±0.05% initialaccuracy, low operating current with power consumption less than 95 µA. This device also offersvery low output noise of 3.8 µVp-p /V, which enables its ability to maintainhigh signal integrity with high-resolution data converters in noise critical systems. With a smallSOT-23 package, REF34xx offers enhanced specifications and pin-to-pin replacement for MAX607x andADR34xx. The REF34xx family is compatible to most of the ADC and DAC such as ADS1287, ADUCM360,ADS1112.

Stability and system reliability are further improved by the low output-voltagehysteresis of the device and low long-term output voltage drift. Furthermore, the small sizeand low operating current of the devices (95 µA) can benefit portable and battery-poweredapplications.

REF34xx is specified for the wide temperature range of −40°C to +125°C. Contact the TIsales representative for additional voltage options.




Qty Price (USD)
1-99 2.222
100-249 1.947
250-999 1.365
1,000+ 1.1