ADM809JAKS-REEL

Supervisors Overview

The ADM809JAKS-REEL is a voltage supervisory circuit from Analog Devices, designed to monitor power supply voltages in microprocessor systems. It operates within a maximum supply voltage of 5.5 V and features a push-pull output type with an active low reset signal. The device monitors a single input voltage with a threshold of 4.0 V and an overvoltage threshold of 2.66 V. It provides a fixed reset delay time of 140 ms. The component functions within a temperature range of -40°C to +125°C and draws a typical operating supply current of 60 µA. It is housed in an SC-70-3 package.

Supervisors Feature Summary

• Provides simple reset or power-on reset functionality for monitored power supplies
• Features a push-pull, totem pole output structure
• Includes an internal timer to maintain reset assertion during power-up events

Supervisors Applications

• Microprocessor system power supply monitoring
• Voltage supervision in embedded control circuits
• Power-on reset generation for digital logic

Supervisors Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest documentation, as availability may vary. Confirm that the SC-70-3 package dimensions match your PCB footprint requirements. Ensure the 4.0 V threshold aligns with your system's nominal voltage levels. Check for any obsolete status notices from Analog Devices prior to finalizing procurement plans.

Supervisors Selection Notes

Select this component when a compact SC-70-3 package is required for single-channel voltage supervision. It is suitable for applications needing a 140 ms reset delay and a 4.0 V threshold. Consider the 60 µA quiescent current for low-power designs. Verify compatibility with the target system's voltage range up to 5.5 V before integration.

Supervisors Part Context

This part belongs to the ADM809 series of supervisory circuits manufactured by Analog Devices. These devices are engineered to ensure reliable operation by detecting under-voltage and over-voltage conditions. The series supports various thresholds and packages to accommodate different system design constraints.

Supervisors Replacement Considerations

ADM809JAKSZ-REEL7 is listed as a direct substitute available from Analog Devices.