ADM823SYKSZ-R7

Supervisors Overview

The ADM823SYKSZ-R7 is a supervisory circuit manufactured by Analog Devices Inc., designed to monitor voltage levels in electronic systems. It features an active low watchdog timer and manual reset capabilities, ensuring system reliability through precise power management. The device operates within a supply voltage range of 1.0 V to 5.5 V, with a fixed reset threshold voltage of 2.32 V. It includes a programmable watchdog timeout period and offers a push-pull output configuration. The component is housed in a compact SC-70-5 package, suitable for space-constrained applications requiring robust power supervision.

Supervisors Feature Summary

• Integrated watchdog timer with programmable timeout functionality
• Manual reset input for direct user control over system state
• Active low push-pull output driver for reliable signal transmission
• Fixed reset threshold voltage ensures consistent monitoring performance

Supervisors Applications

• Microprocessor system power supervision
• Battery-powered devices requiring voltage monitoring
• Industrial control systems needing watchdog protection
• Consumer electronics with strict power management requirements

Supervisors Procurement Notes

Verify the exact suffix 'R7' corresponds to the reel packaging specification when ordering. Confirm the 'S' variant matches the required reset threshold voltage of 2.32 V against your design specifications. Ensure compatibility with the SC-70-5 footprint during PCB layout. Check for any specific environmental or compliance certifications required by your target market regulations before finalizing procurement.

Supervisors Selection Notes

Select this component when a fixed 2.32 V reset threshold is appropriate for the monitored rail. Consider the SC-70-5 package size if board real estate is limited. Evaluate the need for a manual reset input; if not required, other variants may be more cost-effective. Verify that the active low output polarity aligns with the downstream logic interface requirements of the microcontroller or processor being supervised.

Supervisors Part Context

The ADM823 series belongs to Analog Devices' portfolio of voltage supervisor ICs, widely used in embedded systems. This specific model integrates both voltage monitoring and watchdog timer functions into a single small-footprint package. It serves as a critical component for preventing system hangs due to software faults or power anomalies, offering a compact solution compared to discrete implementations.

Supervisors Replacement Considerations

Direct replacements include other ADM823 variants with different reset thresholds (e.g., ADM823RYKSZ-R7 for 2.63 V) or packages. Cross-reference pinouts and electrical characteristics carefully. Ensure any substitute maintains the same active low output behavior and watchdog functionality to avoid redesigning the supervision circuitry.