GENERAL DESCRIPTION
The ADM8690/ADM8691/ADM8695 supervisory circuits offer complete single-chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include microprocessor 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 the ADM690, ADM691, ADM695 and
        for the MAX690, MAX691, 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 sec, or adjustable
    Standby current: 400 nA
    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