1. Products
  2. Power Monitor, Control, and Protection
  3. Supervisory Circuits
  4. Single-Supply Monitors
  5. ADM812


Features and Benefits

  • 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

Product Details

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.


  • Microprocessor systems
  • Controllers
  • Intelligent instruments
  • Automotive systems
  • Safety systems
  • Portable instruments

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

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 Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
ADM812LARTZ-REEL7 Material Declaration Reliability Data 4-Lead SOT-143
ADM812RARTZ-REEL7 Material Declaration Reliability Data 4-Lead SOT-143
ADM812SARTZ-REEL Material Declaration Reliability Data 4-Lead SOT-143
ADM812SARTZ-REEL7 Material Declaration Reliability Data 4-Lead SOT-143
ADM812TARTZ-REEL7 Material Declaration Reliability Data 4-Lead SOT-143
Wafer Fabrication Data

Sample & Buy

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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