ADM1066: Super Sequencer® with Margining Control and Auxiliary ADC Inputs
The ADM1066 Super Sequencer® is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these ...More
ADM1066: Super Sequencer® with Margining Control and Auxiliary ADC Inputs
Product Description
The ADM1066 Super Sequencer® is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these functions, the ADM1066 integrates a 12-bit ADC and six 8-bit voltage output DACs. These circuits can be used to implement a closed-loop margining system that enables supply adjustment by altering either the feedback node or reference of a dc-to-dc converter using the DAC outputs.
Supply margining can be performed with a minimum of external components. The margining loop can be used for in-circuit testing of a board during production (for example, to verify board functionality at −5% of nominal supplies), or it can be used dynamically to accurately control the output voltage of a dc-to-dc converter.
Applications
Features
- Complete supervisory and sequencing solution for up to 10 supplies
- 10 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 - 5 selectable input attenuators allow supervision of
Supplies up to 14.4 V on VH
Supplies up to 6 V on VP1 to VP4 (VPn) - 5 dual-function inputs, VX1 to VX5 (VXn)
High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V
General-purpose logic input - Complete voltage-margining solution for 6 voltage rails
10 programmable output drivers (PDO1 to PDO10)
- Open collector with external pull-up
- Push/pull output, driven to VDDCAP or VPn
- Open collector with weak pull-up to VDDCAP or VPn
- Internally charge-pumped high drive for use with external N-FET (PDO1 to PDO6 only)
- 6 voltage output 8-bit DACs (0.300 V to 1.551 V) allow voltage adjustment via dc-to-dc converter trim/feedback node
- 12-bit ADC for readback of all supervised voltages
- 2 auxiliary (single-ended) ADC inputs
- Reference input (REFIN) has 2 input options
Driven directly from 2.048 V (±0.25%) REFOUT pin
More accurate external reference for improved ADC performance - Device powered by the highest of VPn, VH for improved redundancy
Sequencing engine (SE) implements state machine control of PDO outputs
- State changes conditional on input events
- Enables complex control of boards
- Power-up and power-down sequence control
- Fault event handling
- Interrupt generation on warnings
- Watchdog function can be integrated in SE
- Program software control of sequencing through SMBus
Diagrams
- Enlarge
- Other Diagrams
- Symbols and Footprints
Functional Block Diagram for ADM1066
Super Sequencer® with Margining Control and Auxiliary ADC Inputs
Other Diagrams for ADM1066
Super Sequencer® with Margining Control and Auxiliary ADC Inputs
ADM1066 Pin Configurations
Functional Block Diagram for ADM1066
ADM1184 - 0.8% Accurate Quad Voltage Monitor
| Part# | # Supplies Monitored | Volt Monitoring Accuracy | # Output Drivers | FET Drive/Enable Output | Voltage Readback | Supply Adj/Margining | Programming Method | Temp Sensor | Package | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|
| ADM1060 | 7 | 2.5% | 9 | Both | - | - | SMBus | - | 28 ld TSSOP | $6.50 |
| ADM1062 | 10 | 1% | 10 | Both | 12-bit ADC | 12-bit ADC+6 DACs | SMBus | 1 External, 1 Internal | 40 ld LFCSP , 48 ld TQFP | $7.50 |
| ADM1063 | 10 | 1% | 10 | Both | 12-bit ADC | - | SMBus | 1 Internal, 2 External | 40 ld LFCSP , 48 ld TQFP | $8.25 |
| ADM1064 | 10 | 1% | 10 | Both | 12-bit ADC | - | SMBus | - | 40 ld LFCSP , 48 ld TQFP | $7.75 |
| ADM1065 | 10 | 1% | 10 | Both | - | - | SMBus | - | 40 ld LFCSP , 48 ld TQFP | $5.75 |
| ADM1066 | 12 | 1% | 10 | Both | 12-bit ADC | 12-bit ADC+6 DACs | SMBus | - | 40 ld LFCSP , 48 ld TQFP | $8.50 |
| ADM1067 | 10 | 1% | 10 | Both | - | 6 DACs | SMBus | - | 40 ld LFCSP , 48 ld TQFP | $6.50 |
| ADM1068 | 8 | 1% | 8 | Both | - | - | SMBus | - | 32 ld LQFP | $4.00 |
| ADM1069 | 8 | 1% | 8 | Both | 12-bit ADC | 12-bit ADC+4 DACs | SMBus | - | 32 ld LQFP | $4.35 |
| ADM1085 | Cascadeable | 7% | 1 | Enable | - | - | Analog | - | 6 ld SC70 | $0.34 |
| ADM1086 | Cascadeable | 7% | 1 | Enable | - | - | Analog | - | 6 ld SC70 | $0.34 |
| ADM1087 | Cascadeable | 7% | 1 | Enable | - | - | Analog | - | 6 ld SC70 | $0.34 |
| ADM1088 | Cascadeable | - | 1 | Enable | - | - | Analog | - | 6 ld SC70 | - |
| ADM1184 | 4 | - | 4 | Enable | - | - | Analog | - | - | $2.39 |
| ADM1185 | 4 | 0.8% | 4 | Enable | - | - | Analog | - | 10-Lead MSOP | $1.20 |
| ADM6819 | 2 | 2.6% | 1 | FET Drive | - | - | Analog | - | 6-ld SOT-23 | $1.20 |
| ADM6820 | 2 | 2.6% | 1 | FET Drive | - | - | Analog | - | 6-ld SOT-23 | $1.20 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
ADM1066 Model Options
Help
- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
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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