Key facts
- Brand
- Analog Devices
- Model
- ADM8698
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-04
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Analog Devices ADM8698/ADM8699 Microprocessor Supervisory Circuit Datasheet
The ADM8698 and ADM8699 are supervisory circuits that monitor a 5 V power rail and generate a reset pulse during power‑up, power‑down, or brown‑out conditions. The ADM8698 provides a reset output, while the ADM8699 adds a watchdog timer input to detect microprocessor activity and generate a reset if the watchdog is not serviced.
Both devices are offered in 8‑pin DIP, 8‑pin SOIC, and 16‑lead SOIC packages, with the larger package providing additional reset and watchdog output pins. Electrical specifications include a 3.0‑5.5 V operating voltage range, low supply current, and a guaranteed reset threshold of 4.65 V with 40 mV hysteresis.
Analog Devices ADM8698 specifications
| VCC Operating Voltage Range | 3.0 V – 5.5 V |
|---|---|
| Supply Current | 70 µA – 100 µA |
| Reset Voltage Threshold | 4.65 V typ |
| Watchdog Timeout Period (ADM8699) | 1.0 s – 2.25 s |
| Operating Temperature Range | -40 °C to +85 °C |
Source: Analog Devices ADM8698/ADM8699 Microprocessor Supervisory Circuit Datasheet
All Analog Devices ADM8698 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What voltage range does the ADM8698/ADM8699 monitor?
It monitors VCC from 3.0 V up to 5.5 V.
From: Analog Devices ADM8698/ADM8699 Microprocessor Supervisory Circuit Datasheet
How long does the reset output stay low after power‑up?
The reset output remains low for a minimum of 140 ms after VCC rises above the threshold.
From: Analog Devices ADM8698/ADM8699 Microprocessor Supervisory Circuit Datasheet
How long does the RESET output stay low after power‑up?
The RESET output remains low for a minimum of 140 ms after power‑up.
What is the watchdog timeout period for the ADM8699?
The watchdog timeout period is typically 1.6 seconds.