GENERAL DESCRIPTION
The ADM8690–ADM8695 family of supervisory circuits offers complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include µP reset, backup battery switchover, watchdog timer, CMOS RAM write protection and power failure warning. The complete family provides a variety of configurations to satisfy most microprocessor system requirements.
   
FEATURES
    Upgrade for ADM690/ADM695, MAX690–MAX695
    Specified Over Temperature
    Low Power Consumption (0.7 mW)
    Precision Voltage Monitor
    Reset Assertion Down to 1 V VCC
    Low Switch On-Resistance 0.7 Ω Normal,
        7 Ω in Backup
    High Current Drive (100 mA)
    Watchdog Timer—100 ms, 1.6 s, or Adjustable
    400 nA Standby Current
    Automatic Battery Backup Power Switching
    Extremely Fast Gating of Chip Enable Signals (3 ns)
    Voltage Monitor for Power Fail
    Available in TSSOP Package
   
APPLICATIONS
    Microprocessor Systems
    Computers
    Controllers
    Intelligent Instruments
    Automotive Systems