The ADM13307 is a triple voltage supervisor designed to monitor up to three voltage levels in DSP and microprocessor-based systems. It features a combination of internally pretrimmed undervoltage threshold options for monitoring 1.8V, 2.5V, 3.3V, and 5V. It also has adjustable 0.6V and 1.25V voltage references. The ADM13307 is suitable for supervising DSPs, microcontrollers, industrial and portable equipment, wireless systems, and notebook/desktop computers.
The ADM13307 is a triple‑voltage supervisor designed for DSP and microprocessor‑based systems. It provides three independent supervisory circuits with pre‑trimmed thresholds (1.8 V, 2.5 V, 3.3 V, 5 V) and two adjustable options (0.6 V, 1.25 V). The device offers both active‑high and active‑low RESET outputs and a manual reset input for system control.
The part is supplied in an 8‑lead narrow‑body SOIC package and operates over a −40 °C to +85 °C temperature range. Key electrical parameters include a 40 µA maximum supply current, 10 pF input capacitance, and a reset timeout of 140 ms. Detailed timing, switching, and absolute‑maximum ratings are provided for reliable design.
| Operating voltage range (VDD) | 2.0 V to 5.5 V |
|---|---|
| Supply current (IDD) | 40 µA |
| Input capacitance (CI) | 10 pF |
| Reset output high‑level voltage (VOH) | VDD − 0.2 V |
| Reset output low‑level voltage (VOL) | 0.2 V |
| Power‑up reset voltage | ≥ 1.1 V |
The device operates from 2.0 V up to 5.5 V supply voltage.
Typical supply current is 40 µA.
Fixed thresholds are 1.8 V, 2.5 V, 3.3 V and 5 V; adjustable thresholds are 0.6 V and 1.25 V.
Driving the MR pin low asserts the RESET output; releasing it allows the device to follow the reset timeout before de‑asserting.