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ADM811:  Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic Low RESET Bar Output

Product Details


The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The ADM811/ADM812 are designed to monitor six different voltages, each allowing a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V supply voltage levels.

Included in this circuit is a debounced manual reset input. Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage. The manual reset function is very useful, especially if the circuit in which the ADM811/ADM812 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system.

APPLICATIONS

  • Microprocessor systems
  • Controllers
  • Intelligent instruments
  • Automotive systems
  • Safety systems
  • Portable instruments
  • Data Sheet, Rev. F, 8/09

    FEATURES and BENEFITS

    • Superior upgrade for MAX811/MAX812
    • Specified over temperature
    • Low power consumption: 5 μA typical
    • Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options
    • Reset assertion down to 1 VCC
    • Power-on reset: 140 ms minimum
    • Logic low RESET output (ADM811)
    • Logic high RESET output (ADM812)
    • Built-in manual reset

    ADM811 Functional Block Diagram

    Documentation

    Title Content Type File Type
    ADM811/ADM812: Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP Data Sheet (Rev G, 03/2013) (pdf, 240 kB) Data Sheets PDF
    AN-349: Keys to Longer Life for CMOS  (pdf, 89 kB)
    Here's How CMOS Can be Protected Against Abuse
    Application Notes PDF
    Supervisory Devices Complementary Parts Guide for Altera FPGAs  (pdf, 664 kB) Product Selection Guide PDF
    Supervisory Devices Complementary Parts Guide for Xilinx FPGAs  (pdf, 661 kB) Product Selection Guide PDF
    Voltage Monitoring Products Applications Guide  (pdf, 1808 kB) Solutions Bulletins PDF
    Voltage Monitoring and Sequencing (2009/2010)  (pdf) Overview PDF
    Voltage Monitoring Products 2008  (pdf, 3930 kB) Overview PDF
    Power System Management (Spring 2007)  (pdf, 1170 kB) Overview PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    Supervisor Parametric Search
    Narrow down the thousands of available supervisors using parameters applicable to your application.
    ADIsim Design/Simulation Tools HTML

    Evaluation Kits & Symbols & Footprints

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

    SampleSample & Buy

    Price, packaging, availability

    ADM811 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADM811-3TART-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.54 N  Material Info Notify Me Purchase
    ADM811-3TARTZ-RL Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 10000 $0.46 $0.46 Y  Material Info PDN Purchase
    ADM811-3TARTZ-RL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 $0.46 $0.46 Y  Material Info Notify Me Purchase
    ADM811LART-REEL Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 10000 - $0.54 N  Material Info PDN Purchase
    ADM811LART-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.54 N  Material Info Notify Me Purchase
    ADM811LARTZ-REEL Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 10000 - $0.46 Y  Material Info PDN Purchase
    ADM811LARTZ-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.46 Y  Material Info Notify Me Purchase
    ADM811MART-REEL7 Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 3000 - $0.54 N  Material Info PDN Purchase
    ADM811MARTZ-REEL Status: Production 4 ld SOT143 4 Ind Reel, 10000 - $0.46 Y  Material Info Notify Me Purchase
    ADM811MARTZ-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.46 Y  Material Info Notify Me Purchase
    ADM811RART-REEL7 Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 3000 - $0.54 N  Material Info PDN Purchase
    ADM811RARTZ-REEL Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 10000 - $0.46 Y  Material Info PDN Purchase
    ADM811RARTZ-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.46 Y  Material Info Notify Me Purchase Sample
    ADM811SART-REEL Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 10000 - $0.54 N  Material Info PDN Purchase
    ADM811SART-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.54 N  Material Info Notify Me Purchase
    ADM811SARTZ-REEL Status: Production 4 ld SOT143 4 Ind Reel, 10000 - $0.46 Y  Material Info Notify Me Purchase
    ADM811SARTZ-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.46 Y  Material Info Notify Me Purchase
    ADM811TART-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.54 N  Material Info Notify Me Purchase
    ADM811TARTZ-REEL Status: Production 4 ld SOT143 4 Ind Reel, 10000 - $0.46 Y  Material Info Notify Me Purchase
    ADM811TARTZ-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.46 Y  Material Info Notify Me Purchase
    ADM811ZART-REEL Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 10000 - - N  Material Info PDN Purchase
    ADM811ZART-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.54 N  Material Info Notify Me Purchase Sample
    ADM811ZARTZ-REEL Status: Last Time Buy 4 ld SOT143 4 Ind Reel, 10000 - - Y  Material Info PDN Purchase
    ADM811ZARTZ-REEL7 Status: Production 4 ld SOT143 4 Ind Reel, 3000 - $0.46 Y  Material Info Notify Me Purchase Sample
    Price Table Help

    The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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