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The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications.
The ADM811/ADM812 are designed to monitor five different voltages, each allowing for a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of +3 V, +3.3 V and +5 supply voltage levels.
Included in this circuit is a debounced Manual Reset input. Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage. The Manual Reset function is very useful especially if the circuit in which the ADM811/ADM812 is operating enters into a state that can only be detected by the user. Allowing the user to manually reset a system can reduce the damage or danger that could be otherwise caused by an out-of-control or locked up system.
Superior Upgrade for MAX811/MAX812 Specified Over Temperature Low Power Consumption (5 A Typ) Precision Voltage Monitor: +3 V, +3.3 V, +5 V Options Reset Assertion Down to 1 V VCC 140 ms Min Power-On Reset Logic Low RESET Output (ADM811) Logic High RESET Output (ADM812) Built-In Manual Reset
ADM811 Typical Application
Microprocessor Systems Controllers Intelligent Instruments Automotive Systems Safety Systems Portable Instruments