The ADM8690 series Supervisory Circuit offers complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include mP 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. The ADM8690/ADM8691/ADM8695 are fabricated using an advanced epitaxial CMOS process that combines low power consumption (0.7mW), extremely fast chip enable gating (3ns) and high reliability. RESET assertion is guaranteed with VCC as low as 1V. In addition, the power switching circuitry is designed for minimal voltage drop, thereby permitting increased output current drive of up to 100mA without the need for an external pass transistor.
● Specified over-temperature
● Precision voltage monitor
● Automatic battery backup power switching
● Extremely fast gating of chip enable signals (3ns)
● Voltage monitor for power-fail
● Upgrade for the ADM690, ADM691, ADM695 and for the MAX690, MAX691, MAX695
● 0.7mW Low power consumption
● 0.7R Normal and 7R in backup low switch on resistance
● 100mA High current drive
● 400nA Standby current
