1. Products
  2. Analog Functions
  3. Voltage References
  4. Micropower Voltage References
  5. LT1634

Data Sheet
JP

Overview

Features and Benefits

  • Initial Voltage Accuracy: 0.05%
  • Low Operating Current: 10μA
  • Low Drift: 10ppm/°C Max
  • Less Than 1Ω Dynamic Impedance
  • Both Commercial and Industrial Temperature Range Parts Are Available
  • Available in 1.25V, 2.5V, 4.096V and 5V in SO-8 and TO-92 Packages
  • 1.25V and 2.5V Available in MSOP Package

Product Details

The LT1634 is a micropower, precision, shunt voltage reference. The bandgap reference uses trimmed precision thin film resistors to achieve 0.05% initial voltage accuracy.Improved curvature correction technique guarantees 10ppm/°C maximum temperature drift. Advances in design, processing and packaging techniques guarantee 10µA operation and low temperature cycling hysteresis.The LT1634 does not require an output compensation capacitor, but is stable with capacitive loads. Low dynamic impedance makes the LT1634 reference easy to use from unregulated supplies.

The LT1634 reference can be used as a high performance upgrade to the LM185/LM385, LT1004 and LT1034 where lower power and guaranteed temperature drift is required.

Applications

  • Portable Meters
  • Precision Regulators
  • A/D and D/A Converters
  • Calibrators

Product Categories

Comparable Parts Click to see all in Parametric Search

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Documentation & Resources

  • View All (10)
  • Data Sheets (1)
  • Reliability Data (1)
  • Design Notes (1)
  • Application Notes (1)
  • Technical Articles (6)
    • Document Type
    Technical Articles

    Tools & Simulations

    LTspice

    LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

    To launch ready-to-run LTspice demonstration circuits for this part:

    Step 1: Download and install LTspice on your computer.

    Step 2: Click on the link in the section below to download a demonstration circuit.

    Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

    LTspice

    LTspice Simulations

    LTC3625/LT1784/LT1634 Demo Circuit - Solar Powered SCAP Charger with MPPT
    LT1028/LT1055/LT1634 Demo Circuit - Super Low Distortion Variable Sine Wave Oscillator

    Models for the following parts are available in LTspice:

    LT1634-1.25
    LT1634-2.5
    LT1634-4.096
    LT1634-5

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LT1634-2.5DICE Material Declaration Reliability Data CHIPS OR DIE
    LT1634ACS8-1.25#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634ACS8-1.25#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634ACS8-2.5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634ACS8-2.5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634ACS8-4.096#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634ACS8-4.096#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634ACS8-5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634ACS8-5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-1.25#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-1.25#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-2.5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-2.5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-4.096#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-4.096#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634AIS8-5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCMS8-1.25#PBF Material Declaration Reliability Data 8-Lead MSOP
    LT1634BCMS8-1.25#TRPBF Material Declaration Reliability Data 8-Lead MSOP
    LT1634BCMS8-2.5#PBF Material Declaration Reliability Data 8-Lead MSOP
    LT1634BCMS8-2.5#TRPBF Material Declaration Reliability Data 8-Lead MSOP
    LT1634BCS8-1.25#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCS8-1.25#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCS8-2.5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCS8-2.5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCS8-4.096#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCS8-4.096#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCS8-5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BCS8-5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-1.25#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-1.25#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-2.5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-2.5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-4.096#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-4.096#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-5#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634BIS8-5#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
    LT1634CCZ-1.25#PBF Material Declaration Reliability Data 3-Lead TO-92
    LT1634CCZ-1.25#TRPBF Material Declaration Reliability Data 3-Lead TO-92
    LT1634CCZ-2.5#PBF Material Declaration Reliability Data 3-Lead TO-92
    LT1634CCZ-2.5#TRPBF Material Declaration Reliability Data 3-Lead TO-92
    LT1634CCZ-4.096#PBF Material Declaration Reliability Data 3-Lead TO-92
    LT1634CCZ-4.096#TRPBF Material Declaration Reliability Data 3-Lead TO-92
    LT1634CCZ-5#PBF Material Declaration Reliability Data 3-Lead TO-92
    LT1634CCZ-5#TRPBF Material Declaration Reliability Data 3-Lead TO-92
    Wafer Fabrication Data R357 Reliability Data

    PCN-PDN Information

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • LT1634ACS8-1.25#PBF Production
    • LT1634ACS8-1.25#TRPBF Production
    • LT1634ACS8-2.5#PBF Production
    • LT1634ACS8-2.5#TRPBF Production
    • LT1634ACS8-4.096#PBF Production
    • LT1634ACS8-4.096#TRPBF Production
    • LT1634ACS8-5#PBF Production
    • LT1634ACS8-5#TRPBF Production
    • LT1634AIS8-1.25#PBF Production
    • LT1634AIS8-1.25#TRPBF Production
    • LT1634AIS8-2.5#PBF Production
    • LT1634AIS8-2.5#TRPBF Production
    • LT1634AIS8-4.096#PBF Production
    • LT1634AIS8-4.096#TRPBF Production
    • LT1634AIS8-5#PBF Production
    • LT1634AIS8-5#TRPBF Production
    • LT1634BCMS8-1.25#PBF Production
    • LT1634BCMS8-1.25#TRPBF Production
    • LT1634BCMS8-2.5#PBF Production
    • LT1634BCMS8-2.5#TRPBF Production
    • LT1634BCS8-1.25#PBF Production
    • LT1634BCS8-1.25#TRPBF Production
    • LT1634BCS8-2.5#PBF Production
    • LT1634BCS8-2.5#TRPBF Production
    • LT1634BCS8-4.096#PBF Production
    • LT1634BCS8-4.096#TRPBF Production
    • LT1634BCS8-5#PBF Production
    • LT1634BCS8-5#TRPBF Production
    • LT1634BIS8-1.25#PBF Production
    • LT1634BIS8-1.25#TRPBF Production
    • LT1634BIS8-2.5#PBF Production
    • LT1634BIS8-2.5#TRPBF Production
    • LT1634BIS8-4.096#PBF Production
    • LT1634BIS8-4.096#TRPBF Production
    • LT1634BIS8-5#PBF Production
    • LT1634BIS8-5#TRPBF Production
    • LT1634CCZ-1.25#PBF Production
    • LT1634CCZ-1.25#TRPBF Production
    • LT1634CCZ-2.5#PBF Production
    • LT1634CCZ-2.5#TRPBF Production
    • LT1634CCZ-4.096#PBF Production
    • LT1634CCZ-4.096#TRPBF Production
    • LT1634CCZ-5#PBF Production
    • LT1634CCZ-5#TRPBF Production

    Support & Discussions

    LT1634 Discussions

    RE: LT1634 output current
    All LT1634 Discussions
    LT1634 Contact ADI Technical Support »
    LT1634 Ask your question »
    LT1634 Contact ADI Technical Support » LT1634 Ask your question »

    Sample & Buy


    Ordering FAQs


    See our Ordering FAQs for answers to questions about online orders, payment options and more.

     

    Buy Now Pricing


    (**) Displayed Buy Now Price and Price Range is based on small quantity orders.

     

    List Pricing


    (*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

     

    Lead Times


    Please see the latest communication from our CCO regarding lead times.

     

    Sampling


    Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.


    Price Table Help

     

    •