Overview

Features and Benefits

  • Complete supervisory and sequencing solution for up to 8 supplies
  • 16 event deep black box nonvolatile fault recording
  • 8 supply fault detectors enable supervision of supplies to
    -- <0.5% accuracy at all voltages at 25°C
    -- <1.0% accuracy across all voltages and temperatures
  • 4 selectable input attenuators allow supervision of supplies to
    -- 14.4 V on VH
    -- 6 V on VP1 to VP3 (VPx)
  • 4 dual-function inputs, VX1 to VX4 (VXx)
    -- High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V
    -- General-purpose logic input
  • 8 programmable driver outputs, PDO1 to PDO8 (PDOx)
    -- Open-collector with external pull-up
    -- Push/pull output, driven to VDDCAP or VPx
    -- See datasheet for additional features
  • Sequencing engine (SE) implements state machine control of PDO outputs
    -- State changes conditional on input events
    -- Enables complex control of boards
    -- See datasheet for additional features
  • Device powered by the highest of VPx, VH for improved redundancy
  • User EEPROM: 256 bytes
  • See datasheet for additional features

Product Details

The ADM1168 Super Sequencer® is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple supply systems.

The device also provides up to eight programmable inputs for monitoring undervoltage faults, overvoltage faults, or out-of-window faults on up to eight supplies. In addition, eight programmable outputs can be used as logic enables. Six of these programmable outputs can also provide up to a 12 V output for driving the gate of an NFET that can be placed in the path of a supply.

The logical core of the device is a sequencing engine. This state machine-based construction provides up to 63 different states. This design enables very flexible sequencing of the outputs based on the condition of the inputs.

A block of nonvolatile EEPROM is available that can be used to store user-defined information and may also be used to hold a number of fault records that are written by the sequencing engine defined by the user when a particular fault or sequence occurs.

The ADM1168 is controlled via configuration data that can be programmed into an EEPROM. The whole configuration can be programmed using an intuitive GUI-based software package provided by Analog Devices, Inc.

For more information about the ADM1168 register map, refer to the AN-721 Application Note.

Applications
  • Central office systems
  • Servers/routers
  • Multivoltage system line cards
  • DSP/FPGA supply sequencing
  • In-circuit testing of margined supplies

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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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.

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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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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.