Key facts
- Brand
- Analog Devices
- Model
- ADM690A
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-03
Start here
Analog Devices ADM690A/ADM692A/ADM802L/M/ADM805L/M Datasheet
The ADM690A/ADM692A/ADM802L/M/ADM805L/M family provides single‑chip solutions for power‑supply monitoring, microprocessor reset, watchdog timing and battery backup switching in microprocessor systems. The devices operate from a 1.0 V to 5.5 V supply, generate a reset output when VCC falls below a programmable threshold, and include a 1.6 s watchdog timer that forces a reset if not serviced.
Typical specifications include low quiescent current (70‑100 µA), ultra‑low battery‑backup current (0.05‑1.0 µA), reset voltage thresholds of 4.5‑4.75 V (ADM690A series) or 4.25‑4.5 V (ADM692A series), and a watchdog timeout of 1.6 s. The devices are offered in 8‑pin DIP, SOIC and micro‑SOIC packages and are used in computers, controllers and intelligent instruments.
Analog Devices ADM690A specifications
| Operating Voltage Range (VCC) | 1.0 V – 5.5 V |
|---|---|
| Supply Current (no load) | 70 µA – 100 µA |
| Supply Current in Battery Backup Mode | 0.05 µA – 1.0 µA |
| Reset Voltage Threshold (ADM690A/ADM802L/ADM805L) | 4.5 V – 4.75 V |
| Watchdog Timeout Delay | 200 ms – 280 ms |
| Power‑Fail Input Threshold | 1.20 V – 1.30 V |
Source: Analog Devices ADM690A/ADM692A/ADM802L/M/ADM805L/M Datasheet
All Analog Devices ADM690A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the operating voltage range for the ADM690A family?
The devices operate from 1.0 V up to 5.5 V supply voltage.
From: Analog Devices ADM690A/ADM692A/ADM802L/M/ADM805L/M Datasheet
What is the watchdog timer timeout period?
The watchdog timer times out after 1.6 seconds if not serviced.
From: Analog Devices ADM690A/ADM692A/ADM802L/M/ADM805L/M Datasheet
What is the reset voltage threshold for the ADM690A?
The reset voltage threshold for the ADM690A ranges from 4.5 V to 4.75 V, with a typical value of 4.65 V.
From: Analog Devices ADM690A/ADM692A/ADM802L/M/ADM805L/M Datasheet
How long is the watchdog timer timeout period?
The watchdog timer timeout period is specified as 1.0 s minimum, 1.6 s typical, and 2.25 s maximum.
From: Analog Devices ADM690A/ADM692A/ADM802L/M/ADM805L/M Datasheet