ADM705ARZ-REEL

Supervisors Overview

The ADM705ARZ-REEL is a microprocessor supervisory circuit manufactured by Analog Devices Inc., designed to ensure system stability in voltage-sensitive applications. It monitors a single input channel with a threshold voltage of 4.65 V and an overvoltage threshold of 4.75 V. The device features a push-pull output type, manual reset capability, and an integrated watchdog timer. It operates within a supply voltage range up to 5.5 V, consuming 190 uA of working power. The reset delay time is specified at 200 ms, with a maximum power dissipation of 470 mW. The component is housed in an SOIC-8 package and supports surface mount installation across a temperature range of -40 C to +85 C.

Supervisors Feature Summary

• Integrated watchdog timer for automatic system reset upon software failure or timeout
• Manual reset input with TTL/CMOS compatibility for debounced user-triggered resets
• Push-pull output structure providing robust drive capability for reset signals
• Precise voltage monitoring with defined thresholds for reliable power supervision

Supervisors Applications

• Microprocessor system power supervision
• Industrial controller reset management
• Smart instrument voltage monitoring
• Computer system protection circuits

Supervisors Procurement Notes

Verify the specific suffix REEL7 against official documentation to confirm packaging details such as reel diameter and tape width. Confirm RoHS compliance status through current manufacturer declarations. Check for obsolescence notices or product change notifications that may affect long-term availability. Ensure the SOIC-8 footprint matches the target PCB design requirements before finalizing procurement decisions.

Supervisors Selection Notes

Select this component when a dedicated watchdog timer is required alongside voltage supervision. The 4.65 V threshold suits standard 5 V logic systems. Verify that the 200 ms reset delay aligns with system startup timing requirements. Consider the SOIC-8 package constraints for board space. Compare static current consumption against battery life expectations if applicable.

Supervisors Part Context

This part belongs to the ADM705 series of supervisory circuits from Analog Devices. It serves as a replacement for legacy MAX705 devices. The series provides essential reset generation and power monitoring functions for digital systems. The ADM705 variant specifically includes a watchdog feature not present in all family members like the ADM707.

Supervisors Replacement Considerations

ADM705ANZ is listed as a direct substitute. MAX705CPA+ and MAX705EPA+ are noted as similar alternatives.