ADM803MAKSZ-REEL

Supervisors Overview

The ADM803MAKSZ-REEL7 is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring power supply rails in electronic systems. It operates within a maximum supply voltage of 5.5 V and features a threshold voltage of 4.38 V with an accuracy of 1.5%. The device provides a reset delay time of 240 ms and includes overvoltage detection at 4.45 V. It draws a working supply current of 35 uA and supports both open drain and push-pull output types. The component is housed in an SC-70-3 package, suitable for surface mount installation, and functions reliably across a temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Provides precise voltage supervision with fixed threshold monitoring capabilities
• Offers flexible output configuration supporting both open drain and push-pull modes
• Ensures system stability through defined reset delay timing and overvoltage protection

Supervisors Applications

• Microprocessor supervisor circuits requiring reliable power rail monitoring
• Embedded systems needing automated reset generation upon voltage anomalies
• Industrial control units operating in extended temperature environments

Supervisors Procurement Notes

Verify the exact suffix designation during procurement, as REEL7 indicates specific packaging. Confirm availability status directly with authorized distributors or the manufacturer, as supply constraints may apply. Ensure the selected variant matches the required output type and threshold specifications for your design. Cross-reference the datasheet for pinout compatibility and thermal performance requirements before finalizing orders.

Supervisors Selection Notes

Select this component when a compact supervisory solution with low quiescent current is required. The SC-70-3 package suits space-constrained designs. Consider the fixed threshold voltage against your system's nominal supply level. Evaluate the need for push-pull versus open-drain outputs based on downstream logic interface requirements. Verify that the 240 ms reset delay aligns with your microcontroller startup timing constraints.

Supervisors Part Context

This part belongs to the ADM803 series of voltage supervisors from Analog Devices. These devices are engineered for general-purpose power management applications where simple, cost-effective monitoring is essential. The series typically offers various threshold options and package styles to accommodate different board layouts and voltage levels, maintaining consistency in reliability and performance standards across the family.

Supervisors Replacement Considerations

Check for ADM803 variants with different threshold voltages if the 4.38 V level does not match your application. Compare output drive capabilities if interfacing with high-capacitance loads. Verify package footprint compatibility if substituting with other SC-70-3 devices from different manufacturers.