ADM692AANZ

Supervisors Overview

The ADM692AANZ is a microprocessor supervisory circuit from Analog Devices, designed for complete single-chip power supply monitoring and battery control in microprocessor systems. It features a precision voltage monitor with a threshold of 4.4 V, active high reset output, and a watchdog timer. The device operates within a supply voltage range of 4.5 V to 5.5 V, with a reset delay time of 280 ms. It supports backup battery switchover and power failure warning functions. The component is housed in an SOIC-8 surface-mount package and operates across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates precision voltage monitoring, watchdog timer, and backup battery switchover for comprehensive system supervision.
• Provides active high reset output with configurable timeout delays to ensure reliable microprocessor initialization.
• Includes power failure warning capability to detect undervoltage conditions before critical system shutdown.

Supervisors Applications

• Microprocessor systems requiring robust power management
• Computers and controllers needing automated reset sequences
• Intelligent instruments demanding precise voltage supervision

Supervisors Procurement Notes

Verify the specific suffix 'ANZ' indicates lead-free packaging compliant with RoHS standards. Confirm availability status as distribution channels may list limited stock or end-of-life notices. Ensure the SOIC-8 package footprint matches the target PCB design. Cross-reference the 4.4 V threshold requirement against system voltage rails to prevent false triggering during normal operation.

Supervisors Selection Notes

Select this component when a fixed 4.4 V threshold is required for 5 V CMOS logic systems. Choose the SOIC-8 package for surface-mount assembly constraints. Consider the active high output polarity if interfacing with specific logic families. Evaluate the 280 ms reset delay against processor startup times. Verify that the integrated watchdog timer meets the system's fault detection timing requirements without external components.

Supervisors Part Context

The ADM692AANZ belongs to the ADM690–ADM695 family of supervisory circuits by Analog Devices. This family provides integrated solutions for µP reset, battery backup, and power fail warnings. The ADM692 variant specifically targets applications requiring a 4.4 V threshold. It serves as a direct replacement for older MAX692 series devices in compatible designs, offering improved temperature specifications and lower power consumption.

Supervisors Replacement Considerations

The ADM692AAN is a non-lead-free equivalent within the same series. The MAX692ACPA+ offers similar functionality but with different electrical characteristics such as active low output and distinct operating temperatures. Verify pin compatibility and threshold voltages when substituting with other family members or competitor parts like the MAX692 series.