ADM803MAKSZ-REEL7

Supervisors Overview

The ADM803MAKSZ-REEL7 is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single power supply rails. It operates within a maximum supply voltage of 5.5 V and features a fixed threshold voltage of 4.38 V with an accuracy of 1.5%. The device provides a reset delay time of 240 ms and supports both open drain and push-pull output configurations. It functions reliably across an extended temperature range from -40°C to +125°C, consuming a typical operating supply current of 35 µA.

Supervisors Feature Summary

• Provides reliable microprocessor supervision through precise voltage monitoring capabilities
• Offers flexible interface compatibility via selectable open drain or push-pull output stages
• Ensures stable system operation under varying thermal conditions across the industrial range

Supervisors Applications

• Microprocessor reset circuits in embedded systems
• Power supply monitoring in portable electronic devices
• Industrial control system supervision

Supervisors Procurement Notes

Verify the specific suffix REEL7 corresponds to the required tape and reel packaging configuration for automated assembly processes. Confirm that the SC-70-3 package dimensions align with the target PCB footprint constraints. Ensure the 4.38 V threshold voltage matches the monitored rail requirements without external adjustment components.

Supervisors Selection Notes

Select this component when a fixed 4.38 V threshold is required for 5 V logic systems. Consider the 35 µA quiescent current for battery-sensitive designs. Choose between open drain or push-pull outputs based on downstream logic interface requirements. Verify that the 240 ms reset delay meets the system startup timing specifications.

Supervisors Part Context

This part belongs to the ADM803 series of voltage supervisors from Analog Devices. It is distinct from other variants by its specific 4.38 V threshold and SC-70-3 packaging. The series focuses on providing essential power management protection for digital logic circuits without complex configuration needs.

Supervisors Replacement Considerations

Check ADM803LAKSZ-REEL7 for a 4.63 V threshold variant in the same package. Verify ADM809LARTZ-REEL7 if SOT-23-3 packaging is acceptable with a similar 4.63 V threshold.