Overview

Features and Benefits

  • Precision 1.8 V to 5 V power supply monitoring
  • 9 RESET threshold options
    • 1.58 V to 4.63 V
  • 4 RESET timeout options
    • 1 ms, 20 ms, 140 ms, 1120 ms
  • 3 watchdog timeout options
    • 6.3 ms, 102 ms, 1.6 sec
  • RESET output stages
    • Open-drain active-low (ADM8617)
  • Low power consumption (5 μA)
  • Guaranteed reset output valid to VCC = 1 V
  • Power supply glitch immunity
  • Specified over −40°C to +85°C temperature range
  • 4-lead SC70 package

Product Details

The ADM8616/ADM8617 are supervisory circuits that monitor power supply voltage levels and code execution integrity in micro- processor-based systems. A power-on reset signal generates when the supply voltage rises to a preset threshold level. The ADM8616/ADM8617 have an on-chip watchdog timer that can reset the microprocessor if it fails to strobe within a preset timeout period.

Each part is available in the following nine reset threshold options: 1.58 V, 1.67 V, 2.19 V, 2.32 V, 2.63 V, 2.93 V, 3.08 V, 4.38 V, and 4.63 V. There are four reset timeout options: 1 ms, 20 ms, 140 ms, and 1120 ms. There are also three possible watchdog timeouts available: 6.3 ms, 102 ms, and 1.6 sec. Not all device options are released for sale as standard models. See the Ordering Guide for details.

The parts differ in terms of reset output configuration. The ADM8616 is active-low with a push-pull output, while the ADM8617 is active-low with an open-drain output.

The ADM8616/ADM8617 are available in 4-lead SC70 packages and typically consume only 5 μA, making them suitable for use in low power, portable applications.

Applications

  • Microprocessor systems
  • Computers
  • Controllers
  • Intelligent instruments
  • Portable equipment

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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