Features and Benefits

  • Ultralow power consumption with ICC = 92 nA (typical)
  • Precision, low voltage monitoring
  • Pretrimmed voltage monitoring threshold options
    • 20 options from 0.5 V to 1.9 V
  • ±1.3% threshold accuracy over full temperature range
  • Output disable input
  • 23 µs to 26 µs typical propagation delay
  • Open-drain type output
  • Power supply glitch immunity
  • Available in a 1.46 mm × 0.96 mm WLCSP
  • Operational temperature range: −40°C to +85°C

Product Details

The ADM8641 and ADM8642 are simple voltage detectors suitable for use in general-purpose applications. The ultralow power consumption of these devices makes them suitable for power efficiency sensitive systems, such as battery-powered portable devices and energy meters.

The factory preset detection thresholds from 0.5 V to 4.63 V with ±1.2% accuracy over the full temperature range enable the devices to monitor the node of interest accurately with direct contact. The DIS input lets the user hold the output low regardless of the state of the input. Not all device options are released for sale as standard models. See the Ordering Guide section for full information.

The ADM8641 monitors the voltage using the VCC pin. The separate supply pin on the ADM8642 allows it to have a lower detection threshold down to 0.5 V.

The ADM8641 and ADM8642 are available in a 6-ball, 1.46 mm × 0.96 mm WLCSP. These devices are specified over the −40°C to +85°C temperature range.


  • Portable/battery-operated equipment
  • Microprocessor systems
  • Energy metering
  • Energy harvesting

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.


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The USA 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. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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