Overview
The ADM1066ACPZ-REEL7, produced by Analog Devices Inc., is a configurable supervisory and sequencing device known as the Super Sequencer®. This IC provides a comprehensive solution for supply monitoring and sequencing in multiple-supply systems. It integrates a 12-bit ADC, six 8-bit voltage output DACs, and various other features to ensure robust system operation.
The device is particularly useful in applications requiring precise supply voltage monitoring and adjustment, such as in servers, routers, multivoltage system line cards, and DSP/FPGA supply sequencing. It also supports in-circuit testing of margined supplies during production.
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 supply required on one of VPx, VH |
| VDDCAP Regulated LDO Output | 2.7 V | 4.75 V | 5.4 V | V | - |
| Supply Current (IVH, IVPx) | - | 6 mA | - | mA | VDDCAP = 4.75 V, PDO1 to PDO10 off, DACs off, ADC off |
| Operating Temperature | -40°C | - | 85°C | °C | - |
| Number of Voltages Monitored | - | - | 12 | - | - |
| Package Type | - | - | 40-VFQFN Exposed Pad, CSP | - | - |
| ADC Resolution | - | - | 12 Bits | - | - |
| DAC Resolution | - | - | 8 Bits | - | - |
Key Features
- Complete supervisory and sequencing solution for up to 10 supplies with 10 supply fault detectors, offering accuracy of <0.5% at 25°C and <1.0% across all voltages and temperatures.
- Five selectable input attenuators for supervising supplies up to 14.4 V on VH and 6 V on VP1 to VP4.
- Five dual-function inputs (VX1 to VX5) that can be used as high impedance inputs to supply fault detectors or as general-purpose logic inputs.
- Ten programmable driver outputs (PDO1 to PDO10) with open-collector or push/pull configurations.
- Integrated 12-bit ADC and six 8-bit voltage output DACs for implementing a closed-loop margining system.
- User EEPROM with 256 bytes and industry-standard 2-wire bus interface (SMBus).
- Device powered by the highest of VPx or VH for improved redundancy.
- UVLO function with hysteresis for robust system behavior during power-up and power-down.
Applications
- Servers and routers: For monitoring and sequencing multiple power supplies in server and router systems.
- Multivoltage system line cards: Suitable for complex systems requiring multiple voltage monitoring and sequencing.
- DSP/FPGA supply sequencing: Ideal for ensuring proper power-up and power-down sequences in digital signal processing and field-programmable gate array systems.
- In-circuit testing of margined supplies: Useful for production testing to verify board functionality and adjust supply margins).
Q & A
- What is the primary function of the ADM1066ACPZ-REEL7?
The primary function is to provide a configurable supervisory and sequencing solution for multiple-supply systems, including supply monitoring and margining control.
- What is the voltage range for VH and VPx supplies?
VH can range from 3.0 V to 14.4 V, and VPx can range from 3.0 V to 6.0 V.
- How many supply fault detectors does the ADM1066ACPZ-REEL7 have?
The device has 10 supply fault detectors.
- What is the resolution of the integrated ADC and DACs?
The ADC has a resolution of 12 bits, and the DACs have a resolution of 8 bits each.
- What type of package does the ADM1066ACPZ-REEL7 come in?
The device is packaged in a 40-VFQFN Exposed Pad, CSP.
- What is the operating temperature range of the ADM1066ACPZ-REEL7?
The operating temperature range is from -40°C to 85°C.
- Does the ADM1066ACPZ-REEL7 have user-programmable memory?
Yes, it has 256 bytes of user EEPROM.
- What interface does the ADM1066ACPZ-REEL7 use for communication?
The device uses an industry-standard 2-wire bus interface (SMBus).
- What is the purpose of the UVLO function in the ADM1066ACPZ-REEL7?
The UVLO (Undervoltage Lockout) function ensures robust system behavior during power-up and power-down by providing hysteresis.
- Can the ADM1066ACPZ-REEL7 be used for in-circuit testing?
Yes, it can be used for in-circuit testing of margined supplies during production.
