REF1112 1uA, SOT23-3 10ppm/C Shunt Voltage Reference |

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1uA, SOT23-3 10ppm/C Shunt Voltage Reference



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.


  • 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)

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Part number Order Reference voltage VO (V) VO adj (Min) (V) VO adj (Max) (V) Initial accuracy (Max) (%) Temp coeff (Max) (ppm/ degree C) Rating Operating temperature range (C) Iz for regulation (Min) (uA) Iout/Iz (Max) (mA) Package Group
REF1112 Order now Fixed     1.25     1.25     1.25     0.2     30
Catalog     -40 to 85     1.2     5     SOT-23 | 3