Overview
The ADM706TAR, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to monitor and manage power supply conditions in various electronic systems. This IC is part of the ADM706 series, which provides comprehensive power-supply monitoring and reset generation during power-up, power-down, and brownout conditions. The ADM706TAR is specifically tailored for systems requiring precise voltage monitoring and watchdog timer functionality.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| VCC Operating Voltage Range | 1.0 | 5.5 | V | ||
| Supply Current | 190 | 250 | µA | ||
| Reset Threshold | 3.08 | V | For ADM706T | ||
| Reset Threshold Hysteresis | 40 mV | ||||
| Reset Pulse Width | 160 | 200 | 280 | ms | |
| Watchdog Timeout Period | 1.00 | 1.60 | 2.25 | sec | |
| WDI Pulse Width | 50 ns | ||||
| MR Input Threshold | 0.6 | 2.0 | V | ||
| Package Type | 8-SOIC |
Key Features
- Precision supply voltage monitor with thresholds of 2.63 V, 2.93 V, and 3.08 V for different models.
- Low quiescent current of 100 µA.
- Debounced manual reset input (MR) compatible with TTL, CMOS logic, or manual reset switch.
- Independent watchdog timer with a 1.6 sec timeout period.
- Reset output that remains operational with VCC as low as 1 V, available in active high or active low configurations.
- 1.25 V threshold detector for power fail warning, low battery detection, or monitoring an additional power supply.
Applications
- Microprocessor systems and computers.
- Controllers and intelligent instruments.
- Critical microprocessor power monitoring in automotive systems and other critical applications.
Q & A
- What is the primary function of the ADM706TAR?
The primary function of the ADM706TAR is to monitor the power supply and generate a reset output during power-up, power-down, and brownout conditions.
- What are the available reset output configurations for the ADM706TAR?
The ADM706TAR offers both active high and active low reset output configurations, depending on the specific model variant.
- What is the watchdog timeout period for the ADM706TAR?
The watchdog timeout period for the ADM706TAR is 1.6 seconds.
- What is the quiescent current of the ADM706TAR?
The quiescent current of the ADM706TAR is 100 µA.
- What types of packages are available for the ADM706TAR?
The ADM706TAR is available in narrow 8-lead PDIP and 8-lead SOIC packages.
- What is the operating voltage range for the ADM706TAR?
The operating voltage range for the ADM706TAR is from 1.0 V to 5.5 V.
- How does the manual reset input (MR) work?
The manual reset input (MR) is debounced and can be driven from TTL, CMOS logic, or a manual reset switch. It generates a reset output when taken below 0.6 V.
- What is the purpose of the 1.25 V threshold detector in the ADM706TAR?
The 1.25 V threshold detector is used for power fail warning, low battery detection, or to monitor an additional power supply.
- In what types of systems is the ADM706TAR typically used?
The ADM706TAR is typically used in microprocessor systems, computers, controllers, intelligent instruments, and automotive systems.
- What is the reset pulse width for the ADM706TAR?
The reset pulse width for the ADM706TAR is between 160 ms and 280 ms.
