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Shunt voltage references

REF1112

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1-µA, 3-pin SOT-23 10-ppm/°C shunt voltage reference

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Data sheet

REF1112

ACTIVE
Data sheet Order now

Product details

Rating Catalog VO (V) 1.25 Initial accuracy (max) (%) 0.2 Iz for regulation (min) (µA) 1.2 VO adj (min) (V) 1.25 VO adj (max) (V) 1.25 Reference voltage (V) Fixed Temp coeff (max) (ppm/°C) 50 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 5
Rating Catalog VO (V) 1.25 Initial accuracy (max) (%) 0.2 Iz for regulation (min) (µA) 1.2 VO adj (min) (V) 1.25 VO adj (max) (V) 1.25 Reference voltage (V) Fixed Temp coeff (max) (ppm/°C) 50 Operating temperature range (°C) -40 to 125 Iout/Iz (max) (mA) 5
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • Small package: SOT23-3
  • Fixed reverse breakdown voltage of 1.25V
  • Key specifications
    • Output voltage tolerance: ±0.2% (maximum)
    • Low output noise (0.1Hz to 10Hz): 25µVpp (typical)
    • Temperature range: −40°C to +125°C
    • Operating current range: 1.2µA to 5mA
    • Low temperature coefficient from 0°C to +70°C: 30ppm/°C (maximum)
    • Low temperature coefficient from –40°C to +85°C: 50ppm/°C (maximum)
  • Small package: SOT23-3
  • Fixed reverse breakdown voltage of 1.25V
  • Key specifications
    • Output voltage tolerance: ±0.2% (maximum)
    • Low output noise (0.1Hz to 10Hz): 25µVpp (typical)
    • Temperature range: −40°C to +125°C
    • Operating current range: 1.2µA to 5mA
    • Low temperature coefficient from 0°C to +70°C: 30ppm/°C (maximum)
    • Low temperature coefficient from –40°C to +85°C: 50ppm/°C (maximum)

The REF1112 device is a two-terminal shunt reference designed for power and space sensitive applications. The REF1112 features an operating current of 1µA in a SOT23-3 package and is an improved, lower power voltage reference for designs currently using voltage references in larger packages, such as the REF1004 and LT1004. The REF1112 is specified from –40°C to +85°C with operation extending from –40°C to +125°C.

The REF1112 complements other 1µA components from Texas Instruments including the OPA349 and TLV240x low-power operational amplifiers, and the TLV349x micropower voltage comparator.

The REF1112 device is a two-terminal shunt reference designed for power and space sensitive applications. The REF1112 features an operating current of 1µA in a SOT23-3 package and is an improved, lower power voltage reference for designs currently using voltage references in larger packages, such as the REF1004 and LT1004. The REF1112 is specified from –40°C to +85°C with operation extending from –40°C to +125°C.

The REF1112 complements other 1µA components from Texas Instruments including the OPA349 and TLV240x low-power operational amplifiers, and the TLV349x micropower voltage comparator.
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* Data sheet REF1112 10ppm/°C, 1μA, 1.25V Shunt Voltage Reference datasheet (Rev. E) PDF | HTML 14 Dec 2024
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
White paper Voltage reference selection basics white paper (Rev. A) 23 Oct 2018

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