Overview
The ADM706RARZ is a microprocessor supervisory circuit produced by Analog Devices Inc. This component is designed to monitor and manage the power supply of microprocessors, ensuring reliable operation during power-up, power-down, and brownout conditions. It is part of the ADM706 series, which offers various voltage threshold options to suit different application requirements.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Voltage Threshold | 2.63 V | - |
| Quiescent Current | 100 µA | - |
| Reset Pulse Width | 200 ms | - |
| Watchdog Timer Timeout | 1.6 sec | - |
| Reset Output Type | Active Low | - |
| Manual Reset Input (MR) | Debounced, Active Low | - |
| Power Fail Input Threshold | 1.25 V | - |
| Operating Voltage Range | 3 V to 5.5 V | - |
| Package Type | 8-lead SOIC | - |
Key Features
- Precision supply voltage monitoring with thresholds at 2.63 V, 2.93 V, and 3.08 V for different models.
- Low quiescent current of 100 µA.
- 200 ms reset pulse width to ensure proper system initialization.
- Independent watchdog timer with a 1.6 sec timeout to monitor system activity.
- Debounced manual reset input (MR) for reliable reset generation.
- Power fail input (PFI) with a 1.25 V threshold for low battery detection or additional power supply monitoring.
- Reset output remains operational with VCC as low as 1 V.
Applications
- Microprocessor and microcontroller systems requiring reliable power supply monitoring.
- Embedded systems, especially those operating in harsh environments.
- Low power consumption devices where quiescent current is critical.
- Systems needing watchdog timer functionality to prevent system lockups.
- Battery-powered devices requiring low battery detection and power fail warnings.
Q & A
- What is the primary function of the ADM706RARZ?
The primary function of the ADM706RARZ is to monitor the power supply of microprocessors and generate a reset signal during power-up, power-down, and brownout conditions.
- What are the available voltage thresholds for the ADM706 series?
The ADM706 series offers voltage thresholds of 2.63 V, 2.93 V, and 3.08 V.
- What is the quiescent current of the ADM706RARZ?
The quiescent current of the ADM706RARZ is 100 µA.
- What is the duration of the reset pulse generated by the ADM706RARZ?
The reset pulse width is 200 ms.
- Does the ADM706RARZ have a watchdog timer?
Yes, the ADM706RARZ includes an independent watchdog timer with a 1.6 sec timeout.
- How does the manual reset input (MR) work?
The manual reset input (MR) is debounced and active low, generating a reset signal when taken below 0.6 V.
- What is the power fail input threshold of the ADM706RARZ?
The power fail input threshold is 1.25 V.
- What is the operating voltage range of the ADM706RARZ?
The operating voltage range is from 3 V to 5.5 V.
- In what package type is the ADM706RARZ available?
The ADM706RARZ is available in an 8-lead SOIC package.
- Is the ADM706RARZ RoHS compliant?
Yes, the ADM706RARZ is RoHS compliant.
