ADM709MARZ-REEL

Supervisors Overview

The ADM709MARZ-REEL is a supervisory circuit manufactured by Analog Devices Inc., designed to monitor power supply voltages and generate reset signals. It operates within a supply voltage range of 1 V to 5.5 V and features a push-pull output driver with active-low assertion. The device monitors a single input channel with a threshold voltage of 4.4 V. It provides a minimum reset timeout of 140 ms and supports manual reset functionality. The component is housed in an 8-SOIC surface-mount package, suitable for industrial applications operating between -40°C and +85°C.

Supervisors Feature Summary

• Monitors a single power supply rail with a fixed threshold voltage of 4.4 V
• Provides active-low reset signal via push-pull output driver
• Supports manual reset input for system control flexibility
• Operates across extended industrial temperature range

Supervisors Applications

• Microprocessor and microcontroller power supply monitoring
• Battery-powered systems requiring voltage supervision
• Industrial control equipment power integrity management
• Communication infrastructure power sequencing

Supervisors Procurement Notes

Verify the specific suffix REEL indicates tape-and-reel packaging configuration distinct from tube variants. Confirm the 4.4 V threshold matches design requirements as other ADM709 variants offer different thresholds. Ensure compatibility with 8-SOIC footprint during PCB layout. Check current availability status as distribution may vary by region.

Supervisors Selection Notes

Select this variant when a 4.4 V monitoring threshold is required for 3.3 V or 5 V systems. The push-pull output drives loads directly without external pull-ups. Manual reset capability allows external intervention. Compare against MAX709 equivalents if pin-compatible alternatives are needed. Verify thermal performance within the -40°C to +85°C operating range.

Supervisors Part Context

Part of the ADM709 family of simple reset generators. Shares core architecture with ADM709SARZ and ADM709RARZ but differs in threshold voltage and packaging format. The MARZ designation specifies the 8-SOIC package with industrial temperature rating. Related parts include MAX709 series components from Maxim Integrated.

Supervisors Replacement Considerations

MAX709MCSA+ offers similar functionality with comparable pinout. MAX709RESA+ provides alternative threshold options. Verify electrical parameters match before substitution. Package dimensions must align with existing board space constraints.