Top

Product details

Parameters

VO (V) 1.25 Reference voltage Fixed Initial accuracy (Max) (%) 0.2 Rating Catalog VO adj (Min) (V) 1.25 VO adj (Max) (V) 1.25 Iz for regulation (Min) (uA) 1.2 Temp coeff (Max) (ppm/ degree C) 30, 50 Operating temperature range (C) -40 to 125 Iout/Iz (Max) (mA) 5 open-in-new Find other Shunt voltage references

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 open-in-new Find other Shunt voltage references

Features

  • 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)

All trademarks are the property of their respective owners.

open-in-new Find other Shunt voltage references

Description

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.

open-in-new Find other Shunt voltage references
Download

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 REF1112 10ppm/°C, 1-μA, 1.25-V Shunt Voltage Reference datasheet (Rev. D) Mar. 05, 2018
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
White papers Voltage reference selection basics white paper (Rev. A) Oct. 23, 2018
Technical articles Accurately measure vital signs with low Iq and a small form factor Mar. 28, 2018
Selection guides Voltage Reference Overview Jul. 26, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
Non-Isolated Bi-Directional Converter Reference Design for Battery Charging Applications
TIDA-00653 TIDA-00653 is a non-isolated 48 to 12-V bi-directional converter reference design for 48V battery applications enabled by the UCD3138 digital power controller. The design has the flexibility to work in either a ZVS transition-mode topology to optimize light-load efficiency, or a hard-switching (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Micropower Electrochemical Gas Sensor Amplifier Reference Design
TIDA-00854 — This reference design consists of a micropower “Potentistat” type electrochemical sensor circuit for battery operated portable or long-life portable or fixed remote location devices. Using a nanopower amplifier and reference circuit allows the circuit to function continuously and (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Power Solution for Xilinx FPGA Zynq 7 (1.8V@0.15A)
PMP8251 This reference design featuring multiple of the TPS54325 and other TI power devices, is a complete power solution for Xilinx Zynq FPGA. From 12V input, this reference solution provides all the power rails required by Zynq FPGA including DDR3 memory.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBZ) 3 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos