Overview
The ADM698ARZ is a microprocessor supervisory circuit produced by Analog Devices Inc. This component is designed to provide power supply monitoring and reset functionality for microprocessor systems. It is particularly useful in ensuring the reliable operation of microprocessors by monitoring the power supply voltage and generating a reset signal during power-up, power-down, and low voltage conditions.
The ADM698ARZ is part of the ADM698 series and is available in a 16-lead SOIC package. It is known for its high-performance capabilities, low supply current, and precision voltage monitoring, making it an excellent choice for a wide range of electronic projects, including microprocessor systems, computers, controllers, and automotive systems.
Key Specifications
| Parameter | Min | Typ | Max | Units | Comments |
|---|---|---|---|---|---|
| VCC Operating Voltage Range | 3.0 | 5.5 | V | ||
| Supply Current | 0.6 | 1.95 | mA | ||
| Power-Down Reset Assertion | 4.5 | 4.65 | 4.73 | V | |
| Power-Up Reset Deassertion | 4.73 | V | |||
| Reset Threshold Hysteresis | 40 mV | ||||
| Reset Active Time | 140 | 200 | 280 | ms | TA = +25°C, VCC = +5 V |
| Operating Temperature | -40°C | 85°C | TA | ||
| Package / Case | 16-SOIC (0.295", 7.50mm Width) | ||||
| Output | Push-Pull, Push-Pull | ||||
| Reset | Active High/Active Low | ||||
| Reset Timeout | 140 ms | Minimum |
Key Features
- Precision Voltage Monitoring: The ADM698ARZ monitors the 5 V VCC power supply with a precise threshold of 4.65 V, ensuring reliable operation during power-up, power-down, and low voltage conditions.
- Low Supply Current: It operates with a low supply current of 0.6 mA, making it energy-efficient.
- Guaranteed Reset Assertion: The RESET output is guaranteed to be functional even when VCC is as low as 1 V.
- Reset Time Delay: The component provides a reset active time of 140 ms to 280 ms, ensuring proper system initialization.
- Surface Mount Package: Available in a 16-lead SOIC package, which is suitable for surface mount applications.
- RoHS Compliant: The ADM698ARZ is lead-free and RoHS compliant, meeting environmental standards.
Applications
- Microprocessor Systems: Ideal for monitoring and resetting microprocessors in various systems.
- Computers and Controllers: Used in computer systems, industrial controllers, and other electronic devices that require reliable power supply monitoring.
- Automotive Systems: Suitable for automotive applications where robust power supply monitoring is critical.
- Intelligent Instruments: Applied in intelligent instruments and other critical systems that demand precise voltage monitoring.
Q & A
- What is the primary function of the ADM698ARZ?
The primary function of the ADM698ARZ is to monitor the power supply voltage and generate a reset signal during power-up, power-down, and low voltage conditions to ensure the reliable operation of microprocessors.
- What is the voltage threshold for the ADM698ARZ?
The voltage threshold for the ADM698ARZ is 4.65 V.
- What is the operating temperature range of the ADM698ARZ?
The operating temperature range of the ADM698ARZ is -40°C to 85°C.
- What type of package is the ADM698ARZ available in?
The ADM698ARZ is available in a 16-lead SOIC package.
- Is the ADM698ARZ RoHS compliant?
Yes, the ADM698ARZ is lead-free and RoHS compliant.
- What is the minimum reset timeout for the ADM698ARZ?
The minimum reset timeout for the ADM698ARZ is 140 ms.
- Can the ADM698ARZ operate with low VCC levels?
Yes, the ADM698ARZ can operate with VCC levels as low as 1 V and still assert a reset signal.
- What are some common applications of the ADM698ARZ?
The ADM698ARZ is commonly used in microprocessor systems, computers, controllers, automotive systems, and intelligent instruments.
- How does the ADM698ARZ handle power-down conditions?
The ADM698ARZ generates a reset pulse during power-down conditions to ensure proper system shutdown and initialization.
- What is the supply current of the ADM698ARZ?
The supply current of the ADM698ARZ is 0.6 mA.
