Overview
The ADM693ARZ is a microprocessor supervisory circuit produced by Analog Devices Inc. This component is designed to provide comprehensive power supply monitoring and control functions for microprocessor systems. It offers features such as power-on reset, battery backup switchover, watchdog timer, and power fail warning, ensuring reliable operation of the system under various conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC-16 |
| Threshold Voltage | 4.4 V |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Undervoltage Threshold | 4.25 V |
| Overvoltage Threshold | 4.48 V |
| Reset Delay Time | 50 ms or Adjustable |
| Watchdog Timer | 100 ms, 1.6 s, or Adjustable |
| Battery Backup Switching | Yes |
| Output Current | Up to 100 mA |
| Operating Temperature Range | -40°C to +85°C |
| Supply Current | 1.95 mA |
| Battery Standby Current | 0.6 µA to 1 µA |
Key Features
- Precision voltage monitoring with a 4.4 V threshold voltage.
- Power-on reset output during power-up, power-down, and brownout conditions.
- Battery backup switching for CMOS RAM or other low-power logic.
- Watchdog timer with options for 100 ms, 1.6 s, or adjustable timeout periods.
- Power fail warning with a 1.3 V threshold detector.
- High current drive capability up to 100 mA.
- Low switch on-resistance and fast gating of chip enable signals.
- Automatic battery backup power switching.
- Low power consumption (5 mW) and low standby current (600 nA).
Applications
- Microprocessor systems.
- Computers and controllers.
- Intelligent instruments.
- Automotive systems.
Q & A
- What is the primary function of the ADM693ARZ? The primary function of the ADM693ARZ is to provide power supply monitoring and control functions for microprocessor systems.
- What is the threshold voltage for the ADM693ARZ? The threshold voltage for the ADM693ARZ is 4.4 V.
- What are the available watchdog timer options for the ADM693ARZ? The watchdog timer options include 100 ms, 1.6 s, or adjustable timeout periods.
- Does the ADM693ARZ support battery backup switching? Yes, the ADM693ARZ supports battery backup switching.
- What is the maximum output current of the ADM693ARZ? The maximum output current is up to 100 mA.
- What is the operating temperature range for the ADM693ARZ? The operating temperature range is -40°C to +85°C.
- How much current does the ADM693ARZ consume during normal operation? The ADM693ARZ consumes 1.95 mA during normal operation.
- What is the battery standby current for the ADM693ARZ? The battery standby current is between 0.6 µA and 1 µA.
- Does the ADM693ARZ have a power fail warning feature? Yes, the ADM693ARZ includes a power fail warning feature with a 1.3 V threshold detector.
- In what package is the ADM693ARZ available? The ADM693ARZ is available in a SOIC-16 package.
