ADM1818-20AKS-RL7

Supervisors Overview

The ADM1818-20AKS-RL7 is a single-channel voltage supervisor integrated circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 1.6V to 5.5V and features a fixed reset threshold voltage of 2.0V. The device provides a low-active open-drain or open-collector output signal. It includes a programmable reset timeout period with a minimum duration of 140ms. The component is designed for surface-mount installation in SC-70-3 packages and supports an extended industrial operating temperature range from -40°C to +105°C.

Supervisors Feature Summary

• Provides reliable system reset generation upon power-up or brown-out conditions
• Features a low quiescent current design suitable for battery-powered applications
• Includes a manual reset input pin for external control capability

Supervisors Applications

• Microcontroller and digital signal processor power management
• Portable electronic devices requiring low standby current
• Industrial control systems operating in harsh environments

Supervisors Procurement Notes

Verify the specific suffix 'RL7' corresponds to the tape and reel packaging configuration required for your assembly line. Confirm that the 2.0V threshold aligns precisely with your target logic voltage levels. Ensure the SC-70-3 footprint matches your PCB layout constraints. Check for any recent lifecycle notices regarding obsolescence or last-time buy status before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 2.0V monitoring level is required for lower voltage logic families. Consider the open-drain output compatibility with your system's pull-up resistor network. Evaluate the 140ms minimum timeout against your microcontroller's startup requirements. Compare the SC-70-3 package size against available board space limitations relative to other supervisor options.

Supervisors Part Context

This part belongs to the ADM1818 series of simple reset supervisors. The series offers various threshold voltages and timeout configurations. It serves as a fundamental power management component for ensuring stable operation of digital circuits during power transitions. The manufacturer provides comprehensive datasheets detailing electrical characteristics and application guidelines.

Supervisors Replacement Considerations

Direct parameter-equivalent substitutes may include other ADM1818 variants with different threshold voltages if the 2.0V level is adjustable in your design. Verify pinout compatibility before substituting with similar SC-70-3 supervisors from other manufacturers.