ADM812

PRODUCTION

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

Data Sheet (Rev. H) Product Selection Table

Part Models: 5
1ku List Price: Starting From $0.61

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Overview

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 high RESET output
Built-in manual reset

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

Part Models: 5
1ku List Price: Starting From $0.61

Documentation

Data Sheet 1

ADM811/ADM812: Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP Data Sheet (Rev.H) 11/14/2006

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADM812LARTZ-REEL7	4-Lead SOT-143	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM812RARTZ-REEL7	4-Lead SOT-143	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM812SARTZ-REEL	4-Lead SOT-143	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM812SARTZ-REEL7	4-Lead SOT-143	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADM812TARTZ-REEL7	4-Lead SOT-143	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

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