Features and Benefits

  • Precision Supply Voltage Monitor
  • +5 V, +3.3 V, +3 V Power Supply Monitor
  • 35 µA Quiescent Current
  • 140 ms (min) Power-On Reset Pulse
  • Low Cost
  • 8-Pin DIP/SO Packages
  • Upgrade for MAX709

Product Details

The ADM709 contains a power supply monitor which generates a system reset during power-up, power-down and brownout conditions. When VCC falls below the reset threshold, RESET goes low and holds the µP in reset. On power-up the RESET output is held low for 140 ms after VCC rises above the threshold. The RESET output remains operational with VCC as low as 1 V.

Three supply-voltage threshold levels are available suitable for +5 V, +3.3 V and for +3 V supply monitoring. The actual reset voltage threshold is found in the data sheet.

The ADM709 is available in 8-pin DIP and SOIC packages.


  • Microprocessor Systems
  • Computers
  • Controllers
  • Intelligent Instruments
  • Critical mP Monitoring
  • Automotive Systems
  • Critical mP Power Monitoring 

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.

PCN-PDN Information

Sample & Buy

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