ADM690ANZ

Supervisors Overview

The ADM690ANZ is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 4.5V to 5.5V and features a fixed threshold voltage of 4.65V for power monitoring. The device provides an open-collector reset output with a typical delay time of 200ms. It includes a watchdog timer function and battery backup switch capability. The component is housed in an 8-pin PDIP package and supports through-hole mounting. It functions without manual reset input or chip enable signals, operating across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Provides dedicated battery backup switching functionality
• Features a fixed threshold voltage for precise power supervision

Supervisors Applications

• Microprocessor power supply monitoring
• Embedded system reset generation
• Watchdog timer implementation in industrial controllers

Supervisors Procurement Notes

Verify the specific suffix 'ANZ' against official Analog Devices documentation to confirm lead-free status and package type. Confirm availability as distribution channels may list limited stock or obsolete status. Ensure the required through-hole PDIP-8 package aligns with PCB design constraints before ordering.

Supervisors Selection Notes

Select this component when a fixed 4.65V threshold is required for 5V logic systems. The open-collector output necessitates an external pull-up resistor. Consider the 200ms reset delay and lack of manual reset if faster response or user-initiated resets are needed. Verify thermal dissipation requirements within the specified operating temperature range.

Supervisors Part Context

The ADM690 series belongs to Analog Devices' line of voltage supervisory circuits designed for protecting microprocessors and memory devices. This specific part represents the standard through-hole variant within the family, offering integrated watchdog and backup features commonly found in legacy industrial and commercial electronic designs requiring robust power management.

Supervisors Replacement Considerations

Cross-reference with MAX690RESA+T for surface-mount alternatives. Verify pin compatibility and electrical parameter alignment, particularly threshold voltage and reset delay times, before substituting.