Overview
The ADM811RARTZ-REEL7, produced by Analog Devices Inc., is a reliable voltage monitoring device designed for various voltage monitoring applications. This component is part of the ADM811/ADM812 series, which provides essential power-on reset and voltage supervision functions. It is particularly useful in ensuring that microprocessors and other digital systems operate within stable voltage conditions, preventing spurious activity during power-up and power-down cycles.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 2.5 | - | 5 | V | Monitored supply voltage |
| Reset Threshold Voltage | - | - | 2.68 | V | Maximum reset threshold voltage |
| Supply Current (IDD) | - | - | 10 | µA | Maximum supply current |
| Operating Temperature | -40 | - | 85 | °C | Maximum operating temperature |
| Power Dissipation | - | - | 200 | mW | Maximum power dissipation |
| Reset Output Voltage Low | 0.3 | - | - | V | For ADM812R/S/T/Z when VCC = VTH(MAX) |
| Manual Reset Input | - | - | - | - | Active low, debounced input |
Key Features
- Voltage Monitoring: The ADM811RARTZ-REEL7 monitors the supply voltage and provides a reset signal if the voltage falls below a specified threshold, ensuring stable operation of the microprocessor.
- Power-On Reset: It generates a power-on reset signal, allowing time for both the power supply and the microprocessor to stabilize after power-up.
- Manual Reset: Equipped with a manual reset input that is debounced to ignore input pulses of 100 ns or less, ensuring reliable operation in noisy environments.
- Low Power Consumption: The device has a low supply current, making it energy-efficient.
- Compact Package: Available in a 4-pin package, making it suitable for space-constrained applications.
Applications
- Digital Power System Management: Used in systems that require precise voltage monitoring and reset functions to ensure stable operation.
- Microprocessor Systems: Ideal for microprocessor-based systems where power-on reset and voltage supervision are critical.
- Embedded Systems: Suitable for embedded systems that need reliable voltage monitoring and reset capabilities.
- Industrial Control Systems: Used in industrial control systems where stable and reliable operation is essential).
Q & A
- What is the primary function of the ADM811RARTZ-REEL7?
The primary function is to monitor the supply voltage and provide a reset signal if the voltage falls below a specified threshold, ensuring stable operation of the microprocessor. - What are the supported supply voltages for the ADM811RARTZ-REEL7?
The supported supply voltages are 2.5 V, 3 V, 3.3 V, and 5 V. - What is the maximum operating temperature of the ADM811RARTZ-REEL7?
The maximum operating temperature is 85 °C. - Does the ADM811RARTZ-REEL7 have a manual reset feature?
Yes, it has a manual reset input that is debounced to ignore input pulses of 100 ns or less. - What is the typical power-up reset timeout for the ADM811RARTZ-REEL7?
The typical power-up reset timeout is 240 ms after the supply voltage rises above the reset threshold. - How does the ADM811RARTZ-REEL7 handle power-down scenarios?
During power-down, the RESET output remains valid (low) with VCC as low as 1 V, ensuring the microprocessor is held in a stable shutdown condition. - What is the recommended decoupling capacitor for the VCC pin?
A 0.1 μF decoupling capacitor is recommended between VCC and the GND pin. - Is the ADM811RARTZ-REEL7 suitable for noisy environments?
Yes, it is designed to operate in noisy environments with its debounced manual reset input. - What are some common applications of the ADM811RARTZ-REEL7?
Common applications include digital power system management, microprocessor systems, embedded systems, and industrial control systems. - What is the package type of the ADM811RARTZ-REEL7?
The device is available in a 4-pin package.
