ADM708SARZ

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ADM708SARZ is a family of specialized integrated circuits (ICs) designed and developed by Analog Devices specifically for use as a peripheral supervisor and protection IC. This family of ICs is typically used to protect sensitive and expensive circuit boards from a variety of normal and unexpected overvoltage, undervoltage and fault condition conditions. As such, ADM708SARZ is classified within the Peripheral Manager and Interface (PMIC) – Supervisors product category.

The general purpose of a system supervisor IC such as the ADM708SARZ is to monitor system components such as power supplies and I/O devices for performance and/or safety levels and to protect them from potential damage caused by a variety of abnormal operating conditions. Many systems today include a variety of different power supply voltages, which must be monitored and protected against potential fault conditions. Common faults include overvoltage, undervoltage, overcurrent, or an unexpected power supply loss.

ADM708SARZ ICs are specifically designed to provide one or two channels of power supply monitoring and protection capability. Each individual channel includes a comparator that is used to monitor its associated power supply voltage as a reference voltage is established. If the power supply voltage exceeds the pre-set threshold, the IC generates an active low interrupt signal, providing an indication of the fault condition.

In addition to providing power supply monitoring and protection capability, ADM708SARZ ICs also include other integrated functions such as an input source selection, a power-on reset (POR) and power-down reset (PDOR) delay circuit, a brown-out reset (BOR) circuit and a watch-dog timer for monitoring system performance. The input source selection allows the user to select either an external or an internal reference voltage for the comparators. The POR and PDOR delay circuits are used to inhibit certain operations until the power supply has stabilized and the brown-out reset circuit is used to reset the system if the power supply voltage drops below the pre-set threshold.

The watch-dog timer feature enables the user to monitor and reset the system if necessary in the event of system failure, reducing potential damage and downtime. The timer can be set to reset the system either after a fixed period of time or when a specified number of trigger events have occurred.

The ADM708SARZ family of ICs offers integrated protection and performance monitoring capability, enabling system designers to easily incorporate fault protection and enhanced performance features into their designs. Utilizing the latest feature-rich IC technology, the ADM708SARZ family provides a cost-effective and efficient solution for peripheral management and protection in a variety of applications.

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