This document details the ADM682x series of low voltage monitoring chips, including function features, application scenarios, electrical characteristics, etc.
The ADM682x family provides precision low‑voltage monitoring, reset threshold selection, and an on‑chip watchdog timer for microprocessor‑based systems. Devices are offered in nine reset‑threshold options (1.58 V to 4.63 V) and feature either push‑pull or open‑drain reset outputs.
These supervisory circuits are supplied in a 5‑lead SOT‑23 package, consume only a few picoamps of quiescent current, and operate over a temperature range of –40 °C to +125 °C, making them suitable for low‑power portable applications.
| Operating Voltage Range (Vec) | 1 V – 5.5 V |
|---|---|
| Supply Current (typical) | 20 µA |
| Reset Timeout Period | 140 ms (min) – 280 ms (max) |
| Watchdog Timeout Period | 1.6 s (typical) |
| Package | 5‑lead SOT‑23 |
The reset timeout period is specified as 140 ms minimum, with a typical value of 140 ms and a maximum of 280 ms.
The watchdog timer timeout period is typically 1.6 seconds.
They operate from 1 V up to 5.5 V on the Vec pin.
All parts are available in a 5‑lead SOT‑23 package.