Overview
The ADM706PAR, manufactured by Analog Devices Inc., is a microprocessor supervisory circuit designed to monitor and manage power supply conditions in various electronic systems. This IC is particularly useful for ensuring the reliable operation of microprocessors and other digital circuits by providing reset signals during power-up, power-down, and brownout conditions.
The ADM706PAR is part of the ADM706 series, which includes several variants with different reset threshold voltages. This specific model is configured to monitor a supply voltage of 2.63V, making it suitable for systems operating at 3V or 3.3V power supplies.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Part Number | ADM706PAR | |
| Package | 8-SOIC (0.154, 3.90mm Width) | Narrow 8-lead SOIC package |
| Supply Voltage Range | 1V to 5.5V | Operational voltage range |
| Reset Threshold Voltage | 2.63V | Threshold voltage for reset generation |
| Reset Output Type | Active Low | Type of reset output signal |
| Quiescent Current | 100 µA | Current consumption in standby mode |
| Reset Pulse Width | 200 ms | Duration of the reset pulse |
| Watchdog Timeout Period | 1.6 sec | Timeout period for the watchdog timer |
| Manual Reset Input | Debounced MR input | Manual reset input with internal debouncing |
| Power Fail Input Threshold | 1.25 V | Threshold voltage for power fail detection |
Key Features
- Precision Supply Voltage Monitoring: The ADM706PAR monitors the supply voltage and generates a reset signal if the voltage falls below the specified threshold (2.63V for this model).
- Low Quiescent Current: The IC consumes a low quiescent current of 100 µA, making it energy-efficient.
- Debounced Manual Reset Input: The manual reset input (MR) is internally debounced, allowing it to be driven from TTL, CMOS logic, or a manual reset switch.
- Independent Watchdog Timer: The IC includes an independent watchdog timer with a 1.6-second timeout period, ensuring system reliability by monitoring the watchdog input.
- Power Fail Warning: A power fail input (PFI) allows for low battery detection or monitoring of an additional power supply with a threshold of 1.25 V.
- Active Low Reset Output: The reset output is active low, providing a clear signal during reset conditions.
Applications
- Microprocessor Systems: The ADM706PAR is designed to ensure the reliable operation of microprocessors by providing reset signals during power-up, power-down, and brownout conditions.
- Embedded Systems: Suitable for use in embedded systems that require precise power supply monitoring and reset functionality.
- Industrial Control Systems: Can be used in industrial control systems where robust power monitoring is crucial.
- Medical Devices: Applicable in medical devices that require reliable power supply monitoring to ensure patient safety and device functionality.
Q & A
- What is the primary function of the ADM706PAR?
The primary function of the ADM706PAR is to monitor the supply voltage and generate a reset signal if the voltage falls below the specified threshold, ensuring the reliable operation of microprocessors and other digital circuits.
- What is the reset threshold voltage for the ADM706PAR?
The reset threshold voltage for the ADM706PAR is 2.63V.
- What is the quiescent current of the ADM706PAR?
The quiescent current of the ADM706PAR is 100 µA.
- What type of reset output does the ADM706PAR provide?
The ADM706PAR provides an active low reset output.
- What is the purpose of the watchdog timer in the ADM706PAR?
The watchdog timer monitors the watchdog input and activates if the input does not toggle within 1.6 seconds, ensuring system reliability.
- How does the manual reset input (MR) work on the ADM706PAR?
The manual reset input (MR) is internally debounced and can be driven from TTL, CMOS logic, or a manual reset switch. When taken below 0.6 V, it generates a reset signal.
- What is the power fail input threshold for the ADM706PAR?
The power fail input threshold for the ADM706PAR is 1.25 V.
- In what package is the ADM706PAR available?
The ADM706PAR is available in an 8-SOIC (0.154, 3.90mm Width) package.
- What is the supply voltage range for the ADM706PAR?
The supply voltage range for the ADM706PAR is from 1V to 5.5V.
- What is the duration of the reset pulse generated by the ADM706PAR?
The duration of the reset pulse generated by the ADM706PAR is 200 ms.
