Overview
The ADM706RARZ-REEL7 is a microprocessor supervisory circuit produced by Analog Devices Inc. This component is designed to monitor power supplies, particularly those in the range of 3 V to 3.3 V, and ensure proper operation of microprocessors during power-up, power-down, and brownout conditions. It features a precision supply voltage monitor, a watchdog timer, and a power fail warning circuit, making it suitable for a variety of applications requiring reliable power management.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Operating Voltage Range | 1.0 to 5.5 | V | VCC |
| Supply Current | 100 to 250 | μA | VCC = 3.6 V |
| Reset Threshold | 2.63 V (ADM706R), 2.93 V (ADM706S), 3.08 V (ADM706T) | V | |
| Reset Pulse Width | 200 ms | ||
| Watchdog Timer Timeout | 1.6 sec | ||
| Power Fail Input Threshold | 1.25 V | ||
| Manual Reset Input Threshold | 0.6 V | VIL | |
| Package Type | 8-Lead SOIC | ||
| Operating Temperature Range | -40°C to +85°C | Industrial Version |
Key Features
- Precision supply voltage monitoring with thresholds of 2.63 V, 2.93 V, and 3.08 V.
- Low quiescent current of 100 µA.
- Independent watchdog timer with a 1.6 sec timeout.
- Debounced manual reset input (MR) compatible with TTL, CMOS logic, or manual reset switches.
- Power fail warning circuit with a 1.25 V threshold detector.
- Active high or active low reset output options.
- Reset output remains operational with VCC as low as 1 V.
Applications
- Monitoring 3 V or 3.3 V power supplies in microprocessor systems.
- Power fail or low battery detection in battery-powered devices.
- Ensuring proper microprocessor operation during power-up, power-down, and brownout conditions.
- Use in embedded systems, industrial control systems, and other applications requiring reliable power management.
Q & A
- What is the primary function of the ADM706RARZ-REEL7? The primary function is to monitor power supplies and ensure proper operation of microprocessors during various power conditions.
- What are the reset threshold voltages for the ADM706R, ADM706S, and ADM706T? The reset threshold voltages are 2.63 V for ADM706R, 2.93 V for ADM706S, and 3.08 V for ADM706T.
- What is the quiescent current of the ADM706RARZ-REEL7? The quiescent current is 100 µA.
- What is the watchdog timer timeout period? The watchdog timer timeout period is 1.6 seconds.
- What is the power fail input threshold voltage? The power fail input threshold voltage is 1.25 V.
- What types of reset outputs are available? Both active high and active low reset outputs are available depending on the specific model.
- What is the operating temperature range of the ADM706RARZ-REEL7? The operating temperature range is -40°C to +85°C.
- What package types are available for the ADM706RARZ-REEL7? The component is available in 8-Lead SOIC and PDIP packages.
- Is the manual reset input debounced? Yes, the manual reset input is internally debounced.
- Can the reset output operate at low VCC levels? Yes, the reset output remains operational with VCC as low as 1 V.
