Overview
The ADM690AARN-REEL, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to provide comprehensive power supply monitoring and battery control functions in microprocessor systems. This integrated circuit is part of the ADM690A/ADM692A/ADM802L/M/ADM805L/M family and is housed in an 8-pin SOIC package. It offers a range of features including power-on reset, battery backup switching, watchdog timer, and power failure warning, making it an essential component for ensuring the reliability and stability of microprocessor-based systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package Type | 8-Pin SOIC |
| Operating Temperature Range | –40°C to +85°C |
| Supply Voltage Range | –0.3 V to +6 V (VCC), +2.0 V to +5.5 V (VBATT) |
| Reset Voltage Threshold | 4.65 V (ADM690A), 4.40 V (ADM692A) |
| Watchdog Timer | 1.6 seconds |
| Reset Timeout | 200 ms |
| Quiescent Supply Current | 100 µA |
| Power Fail Accuracy | ±2% (ADM802L/M) |
Key Features
- Precision supply voltage monitoring with reset assertion down to 1 V VCC.
- Battery backup switching for CMOS RAM, CMOS microprocessor, or other low power devices.
- Watchdog timer with a 1.6-second timeout.
- Power-on reset output during power-up, power-down, and brownout conditions.
- Automatic battery backup power switching.
- Low power fail accuracy for reliable power fail detection.
- Space-saving SOIC package.
Applications
The ADM690AARN-REEL is widely used in various microprocessor systems, including computers, controllers, and intelligent instruments. It is particularly useful in applications requiring robust power supply monitoring and battery backup functions, such as:
- Microprocessor-based systems.
- Computers and embedded systems.
- Industrial controllers.
- Intelligent instruments.
Q & A
- What is the primary function of the ADM690AARN-REEL?
The primary function is to provide power supply monitoring and battery control for microprocessor systems. - What is the operating temperature range of the ADM690AARN-REEL?
The operating temperature range is –40°C to +85°C. - What is the reset voltage threshold for the ADM690AARN-REEL?
The reset voltage threshold is 4.65 V. - Does the ADM690AARN-REEL have a watchdog timer?
Yes, it has a watchdog timer with a 1.6-second timeout. - What is the quiescent supply current of the ADM690AARN-REEL?
The quiescent supply current is 100 µA. - In what package type is the ADM690AARN-REEL available?
The ADM690AARN-REEL is available in an 8-pin SOIC package. - What are the key applications of the ADM690AARN-REEL?
Key applications include microprocessor systems, computers, controllers, and intelligent instruments. - Does the ADM690AARN-REEL support battery backup switching?
Yes, it supports battery backup switching for CMOS RAM and other low power devices. - What is the power fail accuracy of the ADM690AARN-REEL?
The power fail accuracy is ±2% for the ADM802L/M models. - Where can I find detailed specifications for the ADM690AARN-REEL?
Detailed specifications can be found in the datasheet available on the Analog Devices website or through distributors like Digi-Key.
