Overview
The ADM1066ACPZ, produced by Analog Devices Inc., is a configurable supervisory/sequencing device known as the Super Sequencer®. This single-chip solution is designed for supply monitoring and sequencing in multiple-supply systems. It integrates a 12-bit ADC and six 8-bit voltage output DACs, enabling the implementation of a closed-loop margining system. This system allows for supply adjustment by altering either the feedback node or reference of a dc-to-dc converter using the DAC outputs, with minimal external components required. The device is particularly useful for in-circuit testing of boards during production and for dynamic control of dc-to-dc converter output voltages.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| VH, VPx Supply Voltage | 3.0 V | 14.4 V (VH), 6.0 V (VPx) | V | Minimum and maximum supply required on one of VPx, VH | |
| VDDCAP Regulated LDO Output | 2.7 V | 4.75 V | 5.4 V | V | Regulated LDO output |
| Supply Current (IVH, IVPx) | 4.2 mA | 6 mA | mA | VDDCAP = 4.75 V, PDO1 to PDO10 off, DACs off, ADC off | |
| ADC Resolution | 12 Bits | VREFIN = 2.048 V | |||
| DAC Resolution | 8 Bits | Six DACs individually selectable | |||
| Number of Monitored Inputs | 10 | ||||
| Package Type | 40-VFQFN Exposed Pad, CSP | ||||
| Temperature Range | -40°C | 85°C | °C |
Key Features
- Complete supervisory and sequencing solution for up to 10 supplies with <0.5% accuracy at 25°C and <1.0% accuracy across all voltages and temperatures.
- 5 selectable input attenuators allowing supervision of supplies up to 14.4 V on VH and 6 V on VP1 to VP4.
- High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V.
- 10 programmable driver outputs (PDO1 to PDO10) with open-collector and push/pull configurations.
- Integrated 12-bit ADC and six 8-bit voltage output DACs for closed-loop margining systems.
- Sequencing engine (SE) implements state machine control of PDO outputs with conditional state changes based on input events.
- Watchdog function integrated in the sequencing engine with software control through SMBus.
- General-purpose logic inputs and auxiliary ADC inputs for enhanced functionality).
Applications
- Central office systems
- Servers and routers
- Multivoltage system line cards
- DSP/FPGA supply sequencing
- In-circuit testing of margined supplies during production
Q & A
- What is the primary function of the ADM1066ACPZ?
The ADM1066ACPZ is a configurable supervisory/sequencing device designed for supply monitoring and sequencing in multiple-supply systems.
- What is the accuracy of supply supervision provided by the ADM1066ACPZ?
The device offers supply supervision with an accuracy of <0.5% at 25°C and <1.0% across all voltages and temperatures.
- How many supply fault detectors does the ADM1066ACPZ have?
The ADM1066ACPZ has 10 supply fault detectors.
- What is the resolution of the ADC and DACs in the ADM1066ACPZ?
The ADC has a resolution of 12 bits, and the DACs have a resolution of 8 bits each.
- What types of outputs are available on the ADM1066ACPZ?
The device features 10 programmable driver outputs (PDO1 to PDO10) with open-collector and push/pull configurations.
- What is the temperature range of the ADM1066ACPZ?
The device operates within a temperature range of -40°C to 85°C.
- What package type is the ADM1066ACPZ available in?
The ADM1066ACPZ is available in a 40-VFQFN Exposed Pad, CSP package.
- Can the ADM1066ACPZ be used for in-circuit testing?
Yes, the device can be used for in-circuit testing of boards during production to verify board functionality at various supply levels.
- Does the ADM1066ACPZ have a watchdog function?
Yes, the device includes a watchdog function that can be integrated into the sequencing engine and controlled through SMBus.
- What are some typical applications of the ADM1066ACPZ?
Typical applications include central office systems, servers and routers, multivoltage system line cards, DSP/FPGA supply sequencing, and in-circuit testing of margined supplies.
