Overview
The ADM1166ACPZ, produced by Analog Devices Inc., is a configurable supervisory/sequencing device known as the Super Sequencer®. This device provides a single-chip solution for supply monitoring and sequencing in multiple-supply systems. It integrates a 12-bit analog-to-digital converter (ADC) and six 8-bit voltage output digital-to-analog converters (DACs), enabling the implementation of a closed-loop margining system for supply adjustment. This functionality is particularly useful for in-circuit testing and dynamic control of dc-to-dc converters.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Input Reference Voltage on REFIN Pin (VREFIN) | 2.048 | V | |||
| ADC Resolution | 12 | Bits | |||
| ADC Gain Error | ±0.05% | % | VREFIN = 2.048 V | ||
| ADC Conversion Time (one channel) | 0.44 | ms | |||
| ADC Conversion Time (all 12 channels, 16× averaging enabled) | 84 | ms | |||
| DAC Output Current (IDACxMAX) | 100 | μA | |||
| Minimum Load Capacitance for DAC Stability | 1 | μF | |||
| PSRR (Power Supply Rejection Ratio) | 60 | dB | |||
| High Voltage (Charge-Pump) Mode Output Impedance (PDO1 to PDO6) | 500 kΩ | ||||
| High Voltage (Charge-Pump) Mode Output Voltage (VOH) | 11 | 12.5 | 14 | V | IOH = 0 μA |
Key Features
- Configurable supervisory/sequencing device for multiple-supply systems.
- 12-bit ADC for monitoring supply voltages.
- Six 8-bit voltage output DACs for implementing a closed-loop margining system.
- Highly programmable supply fault detectors (SFDs) for undervoltage, overvoltage, and out-of-window fault detection.
- Support for up to 10 analog inputs or a combination of analog and digital inputs.
- Cable drop compensation and current limit switches.
- Digital power system management capabilities.
Applications
- In-circuit testing of boards during production to verify functionality at various supply voltage levels.
- Dynamically controlling the output voltage of dc-to-dc converters.
- Supply monitoring and sequencing in multiple-supply systems.
- Digital power system management, including power monitors, hot swap controllers, and ideal diode bridges.
- Energy monitoring and power control applications.
Q & A
- What is the primary function of the ADM1166ACPZ?
The ADM1166ACPZ is a configurable supervisory/sequencing device designed for supply monitoring and sequencing in multiple-supply systems. - What types of faults can the ADM1166ACPZ detect?
The device can detect undervoltage, overvoltage, and out-of-window faults. - How many analog inputs can the ADM1166ACPZ support?
The device can support up to 10 analog inputs or a combination of analog and digital inputs. - What is the resolution of the ADC in the ADM1166ACPZ?
The ADC has a resolution of 12 bits. - What is the typical conversion time for one channel of the ADC?
The typical conversion time for one channel is 0.44 ms. - What is the minimum load capacitance required for DAC stability?
The minimum load capacitance required is 1 μF. - What is the power supply rejection ratio (PSRR) of the device?
The PSRR is 60 dB. - Can the ADM1166ACPZ be used for dynamic control of dc-to-dc converters?
Yes, it can be used for dynamically controlling the output voltage of dc-to-dc converters. - What are some common applications of the ADM1166ACPZ?
Common applications include in-circuit testing, supply monitoring and sequencing, and digital power system management. - Where can I find detailed specifications and register maps for the ADM1166ACPZ?
Detailed specifications and register maps can be found in the datasheet and application notes available on Analog Devices' official website.
