Analog Devices ADM811-3TART-REEL7

Active Low Obsolete DUAL GULL WING Simple Reset/Power-On Reset Supervisor -40C~85C TA 140ms Minimum 2.9mm 3.3V

MICROPROCESSOR SUPERVISORY CIRCUIT IN 4-LEAD SOT-143 WITH DSP Power Supply Support Circuit, Fixed, 1 Channel, +3.08VV, CMOS, PDSO4

The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The ADM811/ADM812 are designed to monitor six different voltages, each allowing a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V 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 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system. Applications Microprocessor systems Controllers Intelligent instruments Automotive systems Safety systems Portable instruments