Overview
The ADM690AARNZ-REEL, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to provide comprehensive power supply monitoring and control functions. This component is part of the ADM690A/ADM692A/ADM802L/M/ADM805L/M family, which offers single-chip solutions for power supply monitoring, battery backup, and watchdog timer functions. The ADM690AARNZ-REEL is particularly useful in microprocessor systems, ensuring reliable operation during power-up, power-down, and brownout conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Threshold Voltage | 4.65 V |
| Reset Type | Active Low, Push-Pull |
| Supply Voltage Range | 1 V to 5.5 V |
| Reset Timeout | 200 ms |
| Watchdog Timer | 1.6 s |
| Quiescent Supply Current | 100 µA |
| Package Type | 8-Pin SOIC |
| Operating Temperature Range | -40°C to +85°C |
| RoHS Compliance | Yes |
Key Features
- Precision supply voltage monitoring with a 4.65 V threshold voltage.
- Reset assertion down to 1 V VCC, ensuring the RESET output remains operational even at low voltages.
- Battery backup switching for CMOS RAM, CMOS microprocessors, or other low-power devices.
- A watchdog timer that generates a reset pulse if not toggled within 1.6 seconds.
- Power fail warning with a 1.25 V threshold detector for low battery detection or monitoring other power supplies.
- Space-saving 8-pin SOIC package.
Applications
- Microprocessor systems.
- Computers and controllers.
- Intelligent instruments.
- Any system requiring reliable power supply monitoring and battery backup.
Q & A
- What is the primary function of the ADM690AARNZ-REEL? The primary function is to provide power supply monitoring, battery backup, and watchdog timer functions for microprocessor systems.
- What is the threshold voltage for the ADM690AARNZ-REEL? The threshold voltage is 4.65 V.
- What type of reset does the ADM690AARNZ-REEL provide? It provides an active low, push-pull reset.
- What is the operating temperature range of the ADM690AARNZ-REEL? The operating temperature range is -40°C to +85°C.
- Is the ADM690AARNZ-REEL RoHS compliant? Yes, it is RoHS compliant.
- What is the watchdog timer duration for the ADM690AARNZ-REEL? The watchdog timer duration is 1.6 seconds.
- What is the quiescent supply current of the ADM690AARNZ-REEL? The quiescent supply current is 100 µA.
- In what package type is the ADM690AARNZ-REEL available? It is available in an 8-pin SOIC package.
- Can the RESET output operate at low VCC voltages? Yes, the RESET output remains operational with VCC as low as 1 V.
- What are some common applications of the ADM690AARNZ-REEL? Common applications include microprocessor systems, computers, controllers, and intelligent instruments.
