ADM809LAKSZ-REEL

Supervisors Overview

The ADM809LAKSZ-REEL is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It monitors power supply voltage in embedded systems and provides a reset output during power-up, power-down, and brown-out conditions. The device operates within a maximum supply voltage of 5.5 V and features a fixed reset delay time of 840 ms. It is available with threshold voltages of 2.5 V, 3 V, 3.3 V, or 5 V. The component utilizes an SC-70-3 surface-mount package and offers push-pull output configuration without manual reset or watchdog timer functionality.

Supervisors Feature Summary

• Monitors power supply voltage to ensure system stability
• Generates reset signals during power transitions
• Compact surface-mount packaging for space-constrained designs

Supervisors Applications

• Microprocessor system power monitoring
• Embedded controller reset generation
• Industrial control board supervision

Supervisors Procurement Notes

Verify the specific threshold voltage variant required for the application, as the base part number covers multiple options (2.5V, 3V, 3.3V, 5V). Confirm the package type matches the PCB footprint. Check current availability status as distribution may be limited. Ensure the operating temperature range meets environmental requirements.

Supervisors Selection Notes

Select this component when a simple, low-pin-count supervisor is needed for single-rail monitoring. Choose based on the required trip point voltage relative to the system rail. Consider the push-pull output capability if direct interfacing with logic inputs is necessary without external pull-ups.

Supervisors Part Context

This part belongs to the ADM803/ADM809/ADM810 family of supervisory circuits from Analog Devices. These devices are designed for reliable voltage monitoring in digital systems. The LAKSZ suffix indicates the specific package and tape-and-reel shipping format.

Supervisors Replacement Considerations

Check for ADM803 or ADM810 variants if different output types or thresholds are needed. Verify pin compatibility before substituting with other SC-70-3 supervisors.