ADM706ANZ

Supervisors Overview

The ADM706ANZ is a microprocessor supervisory circuit from Analog Devices, designed for monitoring 5V power supplies and batteries. It features a precision voltage monitor with a threshold of 4.40V and an independent watchdog timer with a 1.60-second timeout. The device provides a debounced manual reset input and guarantees a valid reset signal down to VCC = 1V. It operates within a supply voltage range up to 5.5V, consumes 250µA quiescent current, and offers a 280ms reset pulse width. The component is housed in an 8-pin PDIP package and supports through-hole mounting.

Supervisors Feature Summary

• Integrates an independent watchdog timer with a fixed 1.60-second timeout interval for system reliability.
• Provides a debounced manual reset input compatible with TTL/CMOS logic levels.
• Ensures valid reset output signals even at low supply voltages as low as 1V.
• Includes a precision voltage monitor specifically calibrated for 4.40V thresholds.

Supervisors Applications

• Microprocessor systems requiring critical supply monitoring
• Computers and controllers needing power-fail detection
• Intelligent instruments with battery backup requirements

Supervisors Procurement Notes

Verify the specific suffix ANZ indicates lead-free compliance and tube packaging when sourcing. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure authenticity and correct pinout configuration for the 8-PDIP package before integration into designs.

Supervisors Selection Notes

Select this component when a dedicated watchdog timer and precise voltage supervision are required for 5V logic systems. The 4.40V threshold makes it suitable for standard 5V rail monitoring. Consider the 250µA quiescent current for power-sensitive applications. Ensure the through-hole PDIP package aligns with the target PCB layout constraints and manufacturing processes.

Supervisors Part Context

The ADM706ANZ belongs to the ADM705/ADM706/ADM707/ADM708 family of low-cost microprocessor supervisory circuits. This series is engineered to replace older generations like the MAX705/MAX708. The 'AN' suffix typically denotes the plastic DIP package variant, while 'Z' indicates RoHS compliance. These devices serve as fundamental building blocks for ensuring system stability during power transitions.

Supervisors Replacement Considerations

Direct functional equivalents include the ADM706AN (non-lead-free) and ADM706AR (SOIC package). For pin-compatible surface mount alternatives, consider the ADM706ARZ. Verify that the replacement maintains the 4.40V threshold and 1.60s watchdog timeout characteristics to ensure circuit compatibility.