ADM691ANZ

Supervisors Overview

The ADM691ANZ is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It provides comprehensive power supply monitoring and battery control functions for microprocessor systems. The device features a precision voltage monitor with ±2% tolerance, a watchdog timer, automatic battery backup switching, and CMOS RAM write protection. It operates within a supply voltage range up to 5.5 V and includes a chip enable signal for fast onboard gating. The component is housed in a 16-pin PDIP package and supports through-hole mounting.

Supervisors Feature Summary

• Integrates complete single-chip solutions for power supply monitoring and battery control
• Provides automatic battery backup power switching functionality
• Includes watchdog timer and CMOS RAM write protection capabilities

Supervisors Applications

• Microprocessor Systems
• Computers
• Controllers
• Automotive Systems

Supervisors Procurement Notes

Verify the specific package type and pin configuration against the official datasheet before integration. Confirm that the 16-pin PDIP form factor aligns with the target PCB layout requirements. Ensure compatibility with the system's operating temperature range and supply voltage specifications. Cross-reference the part number suffix to confirm manufacturing origin and compliance standards.

Supervisors Selection Notes

Select this component when a low-power supervisory circuit with integrated watchdog and battery backup is required. The ±2% reset threshold tolerance offers precise monitoring for critical applications. Consider the PDIP-16 package if through-hole assembly is mandated. Verify that the 200 ms reset delay time meets the system's startup timing constraints.

Supervisors Part Context

The ADM691AANZ belongs to the ADM691A/ADM693A/ADM800L/ADM800M family of supervisory circuits from Analog Devices. This family serves as an upgrade to the MAX691A/93A/800M series, offering enhanced performance in microprocessor systems. The ADM691ANZ specifically denotes the through-hole PDIP variant of this supervisory IC line.

Supervisors Replacement Considerations

The ADM691AARNZ is a surface-mount alternative within the same family. The MAX691AMJE is a compatible legacy equivalent from Maxim Integrated. Verify pinout compatibility and electrical parameters before substitution.