ADM809TAKS-REEL

Supervisors Overview

The ADM809TAKSZ-REEL7 is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for microprocessor supervision in SC-70 packages. It features a single monitored input with a threshold voltage of 3.08 V and an overvoltage threshold of 3.11 V. The device provides a push-pull output type with a reset delay time of 240 ms. It operates within a maximum supply voltage of 5.5 V and maintains an accuracy of 1.5%. The quiescent current is 60 uA, and it functions across a temperature range from -40 C to +125 C.

Supervisors Feature Summary

• Provides precise voltage monitoring with a fixed threshold of 3.08 V for reliable system supervision.
• Features a compact SC-70-3 surface-mount package suitable for space-constrained designs.
• Delivers a push-pull output signal without requiring manual reset or watchdog timer functionality.

Supervisors Applications

• Microprocessor power supply monitoring
• Voltage supervision in portable electronic devices
• System reset generation for embedded controllers

Supervisors Procurement Notes

Verify the exact part number suffix, as REEL7 indicates tape-and-reel packaging. Confirm availability status, as some listings indicate limited supply or discontinuation. Ensure the SC-70-3 package matches your PCB footprint requirements. Check RoHS compliance details if required for your manufacturing process. Validate that the 3.08 V threshold aligns with your specific voltage rail specifications.

Supervisors Selection Notes

Select this component when a fixed 3.08 V threshold is required for single-input voltage supervision. Consider the 60 uA quiescent current for battery-powered applications where low standby consumption is critical. The SC-70-3 package offers a small form factor compared to larger alternatives. Verify that the 240 ms reset delay meets your system's startup timing requirements. Ensure the operating temperature range covers your intended environmental conditions.

Supervisors Part Context

This component belongs to the ADM809 series of supervisory circuits from Analog Devices. It is functionally similar to other parts in the family but distinguished by its specific 3.08 V threshold voltage. The series typically includes variants with different thresholds and packages. This specific model focuses on providing reliable reset signals for digital logic systems operating within standard voltage ranges.

Supervisors Replacement Considerations

The MAX809REXR+T is a comparable alternative from Analog Devices/Maxim Integrated, featuring a 2.63 V threshold and SOT-23-3 package. Verify pin compatibility and threshold voltage differences before substitution. Other ADM809 variants may offer different thresholds but share similar functional characteristics.