The ADM690AAR is a microprocessor (μP) supervisory circuit manufactured by Analog Devices (AD). Below are its key specifications, descriptions, and features:
Specifications:
- Manufacturer: Analog Devices (AD)
- Series: ADM690
- Package: 8-SOIC (0.154", 3.90mm Width)
- Operating Temperature Range: -40°C to +85°C
- Supply Voltage (VCC): 1.0V to 5.5V
- Reset Threshold Accuracy: ±1.5%
- Reset Timeout Period: 200ms (Typical)
- Watchdog Timeout Period: 1.6s (Typical)
- Quiescent Current: 35μA (Typical)
Descriptions:
- The ADM690AAR is a low-power microprocessor supervisory circuit designed to monitor power supply voltage and provide reset signals to μP/μC systems.
- It integrates power-on reset (POR), watchdog timer, and manual reset functions in a single chip.
- Ensures reliable system operation by monitoring VCC and generating a reset signal if the voltage falls below a preset threshold.
- The watchdog timer resets the system if the microcontroller fails to toggle the watchdog input within a set period.
Features:
- Precision Voltage Monitoring: Ensures accurate reset triggering at a preset threshold.
- Low Power Consumption: Ideal for battery-powered applications.
- Manual Reset Input: Allows external reset control via a pushbutton.
- Watchdog Timer: Prevents system lockup by monitoring μP activity.
- Wide Operating Voltage Range (1.0V to 5.5V): Suitable for various logic levels.
- Industrial Temperature Range (-40°C to +85°C): Reliable in harsh environments.
- Small Form Factor (8-SOIC): Space-efficient for compact designs.
The ADM690AAR is commonly used in embedded systems, industrial controls, and battery-powered devices requiring reliable power monitoring and reset functionality.