ADM8316WDZ30ARJZR7

Supervisors Overview

The ADM8316WDZ30ARJZR7 is a supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single voltage rails in automotive and industrial applications. It features an integrated watchdog timer with a fixed timeout of 30ms and a manual reset input. The device provides a push-pull output active low, with a reset threshold voltage of 3.0V. It operates within a temperature range of -40°C to +125°C and is housed in a 5-lead SOT-23 package. This component is AEC-Q100 qualified for automotive use.

Supervisors Feature Summary

• Integrates a watchdog timer with a fixed 30ms timeout period for system reliability.
• Includes a manual reset (MR) input pin allowing external control over the reset state.
• Features a push-pull output stage that drives both high and low logic levels effectively.
• Qualified for automotive applications under the AEC-Q100 standard.

Supervisors Applications

• Automotive electronic control units requiring power supply supervision
• Industrial systems needing watchdog timer functionality
• Embedded devices with manual reset requirements

Supervisors Procurement Notes

Verify the exact suffix ARJZR7 confirms the reel packaging format and specific test bin if required for your assembly process. Confirm the 3.0V threshold matches your rail voltage precisely. Check current availability status as automotive components may have restricted supply chains. Ensure the SOT-23-5 footprint aligns with your PCB design guidelines before finalizing procurement orders.

Supervisors Selection Notes

Select this part when a fixed 30ms watchdog timeout is sufficient for your application's timing constraints. The 3.0V threshold is suitable for 3.3V or 5V systems where the lower rail remains above this level during normal operation. Consider the manual reset feature if external hardware reset capability is necessary. Verify that the push-pull output drive strength meets the load requirements of the connected microcontroller or FPGA.

Supervisors Part Context

This component belongs to the ADM8316 series of supervisory circuits from Analog Devices. The series offers various threshold voltages and timeout options tailored for different power management needs. The WD variant specifically denotes the inclusion of the watchdog timer feature alongside the manual reset input, distinguishing it from basic supervisor variants without these timing controls.

Supervisors Replacement Considerations

Direct substitutes include other ADM8316 variants with similar thresholds but different timeouts, such as ADM8316WDZ49ARJZR7 for a 4.9V threshold. Cross-referencing with ADM6320 series may be possible if manual reset is not critical, though pinouts and features differ. Always verify electrical parameters and package compatibility before substitution.