ADM1818-20ART-RL7

Supervisors Overview

The ADM1818-20ART-RL7 is a supervisory circuit manufactured by Analog Devices Inc., designed as a microprocessor reset generator. It monitors a single voltage input with a typical threshold of 2.0V. The device features an open-drain or open-collector output that asserts a low-active reset signal upon power-up or voltage dropout. It includes a minimum reset timeout of 140ms to ensure stable operation during power transitions. The component operates within a temperature range of -40°C to +125°C and is housed in a surface-mount SOT-23-3 package.

Supervisors Feature Summary

• Provides reliable voltage supervision for microprocessor systems
• Generates active-low reset signals with configurable timeout
• Supports open-drain or open-collector output configurations
• Operates across extended industrial temperature ranges

Supervisors Applications

• Microprocessor reset generation in embedded systems
• Power supply monitoring for portable devices
• Voltage supervision in industrial control circuits
• Battery-powered equipment reset management

Supervisors Procurement Notes

Verify the exact suffix ART-RL7 against current Analog Devices documentation, as packaging and tape specifications may vary. Confirm lead times and availability status directly with authorized distributors, as this part number may be subject to discontinuation or limited stock conditions. Ensure compatibility with existing PCB footprints and thermal requirements before finalizing procurement decisions.

Supervisors Selection Notes

Select this component when a simple, low-cost supervisor with a fixed 2.0V threshold is required. Consider the open-drain output capability if interfacing with different logic voltage levels. Evaluate the SOT-23-3 package size constraints against available board space. Compare performance against other ADM1818 variants if specific threshold voltages like 2.31V or 2.55V are needed instead of the 2.0V option.

Supervisors Part Context

This part belongs to the ADM1818 series of voltage supervisors from Analog Devices. The series offers various threshold options including 2.0V, 2.18V, 2.31V, and higher values. These devices are commonly used in applications requiring basic power-on reset functionality without complex programmability. The ART-RL7 designation indicates the specific 2.0V threshold variant in reel packaging.

Supervisors Replacement Considerations

The ADM1818-R23AKSZ-R7 is listed as a parameter-equivalent substitute. Verify pinout compatibility and threshold voltage differences (2.31V vs 2.0V) before substitution. Check for any changes in reset timeout characteristics or operating temperature ranges between the original and replacement parts.