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Product details

Parameters

VO (V) 2.5, 3, 3.3, 4.096, 5 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 6 Rating Automotive Vin (Min) (V) 2.55 Vin (Max) (V) 12 Iq (Typ) (uA) 72 TI functional safety category Functional Safety-Capable Features Enable pin, 4-wire output Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 Shutdown current (Typ) (uA) 2.5 open-in-new Find other Series voltage references

Package | Pins | Size

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

Features

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C6
  • Initial accuracy: ±0.05% (maximum)
  • Temperature coefficient : 6 ppm/°C (maximum)
  • Operating temperature range: −40°C to +125°C
  • Output voltage options: 2.5V, 3.0V, 3.3V, 4.096V, 5.0V
  • Output current: ±10 mA
  • Low quiescent current: 95 µA (maximum)
  • Low shutdown mode current: 3 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
  • Available in 6-pin and 5-Pin SOT-23 package

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Description

The REF34-Q1 devices are low-temperature-drift (6 ppm/°C), low-power, high-precision CMOS voltage references. The devices have ±0.05% initial accuracy and low operating current with power consumption less than 95 µA. These devices also offer very low output noise of 3.8 µVPP/V, which enable the devices to maintain high signal integrity with high-resolution data converters and noise critical systems.

Stability and system reliability are further improved by the low output-voltage hysteresis of these devices and low long-term output voltage drift. Furthermore, the small size and low operating current of the devices (95 µA) make them an excellent choise for battery-powered applications. The REF34-Q1 features an enable pin that can set the device into shutdown where it consumes a low stand by current (3 µA) to help with overall system power during standby.

The REF34-Q1 family is specified for the wide temperature range of −40°C to +125°C. Contact the TI sales representative for additional voltage options.

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Exact equivalent in functionality and parametrics to the compared device:
REF3425 ACTIVE 2.5-V low-drift low-power small-footprint series voltage reference Catalog version of the device with a 2.5-V output
REF3430 ACTIVE 3-V Low-drift low-power small-footprint series voltage reference Catalog version of the device with a 3-V output
REF3433 ACTIVE 3.3-V Low-drift low-power small-footprint series voltage reference Catalog version of the device with a 3.3-V output
REF3440 ACTIVE 4.1-V low-drift low-power small-footprint series voltage reference Catalog version of the device with a 4.096-V output
REF3450 ACTIVE 5-V low-drift low-power small-footprint series voltage reference Catalog version of the device with a 5-V output

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet REF34-Q1 Low-Drift, Low-Power, Small-Footprint Series Voltage References datasheet (Rev. B) Aug. 31, 2020
Application notes REF34xx-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec. 18, 2019
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Application notes Implementing Voltage References and Supervisors Into Your Traction Inverter Desi May 22, 2019
Application notes Choosing the Right Voltage Reference for Your Automotive Application Jul. 17, 2018

Design & development

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Hardware development

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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 (...)

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  • Supports 6 common package types
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Design tools & simulation

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SOT-23 (DBV) 6 View options
SOT-23 (DBV) 5 View options

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