GENERAL DESCRIPTION

The ADM698/ADM699 supervisory circuits provide power supply monitoring and watchdog timing for microprocessor systems.

The ADM698 monitors the 5 V VCC power supply and gener ates a RESET pulse during power up, power down and during low voltage “Brown Out” conditions. The RESET output is guaranteed to be functional (logic low) with VCC as low as 1 V.

FEATURES

Superior Upgrade for MAX698/MAX699

Guaranteed RESET Assertion with VCC = 1 V

Low 0.6 mA Supply Current

Precision 4.65 V Voltage Monitor

Power OK/Reset Time Delay

Watchdog Timer

Minimum Component Count

Performance Specified over Temperature

APPLICATIONS

Microprocessor Systems

Computers

Controllers

Intelligent Instruments

Automotive Systems

Critical mP Power Monitoring