
Analog Devices
GENERAL DESCRIPTION
The ADM690A/ADM692A/ADM802L/M/ADM805L/M 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, and power failure warning.
FEATURES
Precision Supply Voltage Monitor
4.65 V ADM690A/ADM802L/ADM805L
4.40 V ADM692A/ADM802M/ADM805M
Reset Assertion Down to 1 V VCC
Reset Timeout—200 ms
Watchdog Timer—1.6 s
100 μA Quiescent Supply Current
Automatic Battery Backup Power Switching
Voltage Monitor for Power Fail
±2% Power Fail Accuracy on ADM802L/M
Space-Saving MicroSOIC Package (ADM690A)
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments