Product details

VO (V) 1.25 Reference voltage Fixed Initial accuracy (Max) (%) 0.2 VO adj (Min) (V) 1.25 VO adj (Max) (V) 1.25 Iz for regulation (Min) (uA) 1.2 Rating Catalog Temp coeff (Max) (ppm/ degree C) 30, 50 Operating temperature range (C) -40 to 125 Iout/Iz (Max) (mA) 5
VO (V) 1.25 Reference voltage Fixed Initial accuracy (Max) (%) 0.2 VO adj (Min) (V) 1.25 VO adj (Max) (V) 1.25 Iz for regulation (Min) (uA) 1.2 Rating Catalog Temp coeff (Max) (ppm/ degree C) 30, 50 Operating temperature range (C) -40 to 125 Iout/Iz (Max) (mA) 5
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37
  • Small Package: SOT23-3
  • Fixed Reverse Breakdown Voltage of 1.25 V
  • Key Specifications
    • Output Voltage Tolerance: ±0.2% (Maximum)
    • Low Output Noise (0.1 Hz to 10 Hz): 25 µVpp (Typical)
    • Temperature Range: −40°C to +125°C
    • Operating Current Range: 1.2 µA to 5 mA
    • 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 1.25 V
  • Key Specifications
    • Output Voltage Tolerance: ±0.2% (Maximum)
    • Low Output Noise (0.1 Hz to 10 Hz): 25 µVpp (Typical)
    • Temperature Range: −40°C to +125°C
    • Operating Current Range: 1.2 µA to 5 mA
    • 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 1 µA in a SOT23-3 package and is an improved, lower power solution 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 1-µA 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 1 µA in a SOT23-3 package and is an improved, lower power solution 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 1-µA components from Texas Instruments including the OPA349 and TLV240x low-power operational amplifiers, and the TLV349x micropower voltage comparator.

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Technical documentation

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Type Title Date
* Data sheet REF1112 10ppm/°C, 1-μA, 1.25-V Shunt Voltage Reference datasheet (Rev. D) 05 Mar 2018
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
Technical article Accurately measure vital signs with low Iq and a small form factor 28 Mar 2018

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