ADM809MAKSZ-REEL7

Supervisors Overview

The ADM809MAKSZ-REEL7 is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for microprocessor reset generation. It operates within a supply voltage range of 1 V to 5.5 V and features a push-pull output type. The device provides a reset delay time of 840 ms and maintains an accuracy of 1.5%. It supports multiple threshold voltages including 2.5 V, 3 V, 3.3 V, and 5 V, with an overvoltage threshold of 4.45 V. The component consumes a working power current of 60 uA and functions reliably across a temperature range from -40 C to +125 C.

Supervisors Feature Summary

• Provides manual reset-free supervision with a fixed 840 ms reset delay
• Features a compact SC-70-3 surface-mount package for space-constrained designs
• Offers high accuracy of 1.5% for precise voltage monitoring

Supervisors Applications

• Microprocessor system reset generation
• Battery-powered device power management
• Embedded controller voltage supervision

Supervisors Procurement Notes

Verify the specific threshold voltage variant required, as the series offers multiple options. Confirm RoHS compliance status through official documentation, as historical records indicate variations. Check current availability status, as this part may be subject to limited supply or discontinuation notices. Ensure the SC-70-3 package matches the PCB footprint requirements before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a longer reset delay of 840 ms is necessary compared to standard 240 ms variants. Choose based on the specific threshold voltage needed (2.5 V, 3 V, 3.3 V, or 5 V) rather than assuming a single value. Consider the SC-70-3 package size if board space is limited. Verify that the 60 uA quiescent current fits the low-power design constraints.

Supervisors Part Context

This part belongs to the ADM809 series of voltage supervisors from Analog Devices. Unlike other members in the family that typically feature a 240 ms reset delay, this specific variant utilizes an 840 ms delay. It shares the same 60 uA current consumption and 1.5% accuracy specifications common to the series but differs in packaging and timing characteristics.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult Analog Devices official resources for cross-reference information.