ADM693AR – ANALOG DEVICES

Overview

The Analog Devices ADM693AR is a robust single-channel supervisor IC designed to monitor system voltage and assert a reset signal when a critical voltage threshold is breached. Its primary function is to ensure system integrity during power-up, power-down, and brown-out conditions. A key design consideration for supervisors like the ADM693AR is the trade-off between reset assertion speed and susceptibility to transient noise; while a faster assertion prevents system instability, it can also lead to false triggers in electrically noisy environments. This device, with its open-drain/push-pull output, offers flexibility in reset signal routing, making it suitable for applications demanding reliable power monitoring.

Key Features

• Voltage Threshold: 4.4V
• Output Type: Open Drain, Push-Pull
• Reset Polarity: Active High/Active Low
• Reset Timeout: 35ms Minimum
• Operating Temperature: -40°C to 85°C
• Package: 16-SOIC (7.50mm Width)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Power sequencing for embedded microcontrollers
• System reset generation in industrial control systems
• Brown-out detection in battery-powered portable devices
• Watchdog timer integration for critical embedded applications