ADM802LAN

Supervisors Overview

The ADM802LAN is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 2.93V to 5.5V and features a push-pull active-low reset output. The device provides a fixed reset pulse width of 140ms and includes an open-drain manual reset input. It functions as a voltage monitor with a selectable threshold, ensuring system reliability by detecting under-voltage conditions.

Supervisors Feature Summary

• Provides a stable reset signal for microprocessors and memory systems
• Includes a manual reset input for external control
• Features a fixed internal reset pulse duration
• Operates across a wide industrial temperature range

Supervisors Applications

• Microprocessor power supply monitoring
• Battery-powered equipment supervision
• Portable instrumentation reset circuits
• CMOS memory backup control

Supervisors Procurement Notes

Verify the specific suffix 'L' indicates the lead-free and RoHS compliant variant when sourcing. Confirm the package type matches the design requirements, as this part number typically corresponds to the SOIC-8 or similar surface-mount configuration. Ensure the selected vendor sources directly from Analog Devices or authorized distributors to guarantee authenticity and traceability.

Supervisors Selection Notes

Select this component when a fixed threshold voltage supervisor is required for standard logic families. The fixed 140ms reset pulse simplifies timing design compared to adjustable delay options. Consider the manual reset pin functionality if external user intervention triggers are necessary. Verify that the operating voltage range aligns with the target system's nominal supply levels.

Supervisors Part Context

The ADM802 series belongs to Maxim Integrated's family of low-power voltage supervisors. These devices are designed to replace discrete comparator-based solutions, offering higher accuracy and lower quiescent current. The ADM802 specifically targets applications requiring a simple, reliable reset mechanism without complex programming or external components.

Supervisors Replacement Considerations

Check for direct cross-references such as the ADM802LANSZ or other suffix variations indicating different packaging. Verify compatibility with existing PCB footprints if switching between SOIC and TSSOP packages. Ensure replacement parts maintain the same reset threshold voltage and pulse width specifications.