ADM8690/ADM8691/ADM8692/ADM8693/ADM8694/ADM8695 are a series of microprocessor supervisory circuits developed by Analog Devices. It has the advantages of ultra-low power consumption, high-precision voltage monitoring, low switch on resistance, large current drive, adjustable watchdog timer, 400nA standby current, automatic battery backup power switching, extremely fast chip enable signal gating (3ns), etc. It is widely used in microprocessor systems, computers, controllers, intelligent instruments, automotive systems and other fields.
The ADM869x family provides microprocessor reset, battery‑backup switching, watchdog timer, voltage‑monitor and CMOS RAM write‑protect functions in a single chip. Devices operate from 2.0 V to 5.5 V and can drive up to 100 mA on the Vout pin.
The datasheet includes functional block diagrams, pin descriptions, absolute maximum ratings, typical performance curves, and an ordering guide covering PDIP, SOIC and TSSOP packages.
| Low power consumption | 0.7 mW |
|---|---|
| Watchdog timeout period (internal oscillator, typical) | 16 s |