ADM811 Series

Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic Low RESET Bar Output

Catalog

Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic Low RESET Bar Output

Part	Voltage - Threshold	Operating Temperature [Max]	Operating Temperature [Min]	Type	Number of Voltages Monitored	Mounting Type	Package / Case	Supplier Device Package	Reset	Output	Reset Timeout [Min]
Analog Devices ADM811LARTZ-REEL7	4.63 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811RARTZ-REEL7	2.63 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811ZART-REEL7	2.32 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811ZART-REEL	2.32 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811SARTZ-REEL7	2.93 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811LART-REEL7	4.63 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811TARTZ-REEL	3.08 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811TART-REEL7	3.08 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811-3TART-REEL7	3.08 V	85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms
Analog Devices ADM811MART-REEL7		85 °C	-40 °C	Simple Reset/Power-On Reset	1	Surface Mount	TO-253-4 TO-253AA	SOT-143-4	Active Low	Push-Pull Totem Pole	140 ms

Catalog

Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic Low RESET Bar Output

Key Features

• Superior upgrade for MAX811/MAX812

• Specified over temperature

• Low power consumption: 5 μA typical

• Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options

• Reset assertion down to 1 VCC

• Power-on reset: 140 ms minimum

• Logic lowRESEToutput

• Built-in manual reset

Description

The ADM811/ADM812are 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.ApplicationsMicroprocessor systemsControllersIntelligent instrumentsAutomotive systemsSafety systemsPortable instruments