ADM706

3 V, Voltage Monitoring Microprocessor Supervisory Circuit
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Product Details

The ADM706P/ADM706R/ADM706S/ADM706T and the ADM708R/ADM708S/ADM708T microprocessor supervisory circuits are suitable for monitoring either 3 V or 3.3 V power supplies.

The ADM706P/ADM706R/ADM706S/ADM706T provide power-supply monitoring circuitry that generate a reset output during power-up, power-down, and brownout conditions. The reset output remains operational with VCC as low as 1 V. Independent watchdog monitoring circuitry is also provided. This is activated if the watchdog input has not been toggled within 1.6 seconds.

In addition, there is a 1.25 V threshold detector for power-fail warning, low battery detection, or to monitor an additional power supply. An active low debounced MR input is also included.

The ADM706R, ADM706S, and ADM706T are identical except for the reset threshold monitor levels, which are 2.63 V, 2.93 V, and 3.08 V, respectively. The ADM706P is identical to the ADM706R in that the reset threshold is 2.63 V. It differs only in that it has an active high reset output.

The ADM708R/ADM708S/ADM708T provide similar functio-nality as the ADM706R/ADM706S/ADM706T and only differ in that a watchdog timer function is not available. Instead, an active high reset output (RESET) is provided in addition to the active low (RESET) output.

All parts are available in narrow 8-lead PDIP and 8-lead SOIC packages.

  1. A watchdog timer function is not available.
  2. An active high reset output (RESET) in addition to the active low (RESET) output is available.

Applications

  • Microprocessor systems
  • Computers
  • Controllers
  • Intelligent instruments
  • Critical microprocessor monitoring
  • Automotive systems
  • Battery-operated systems
  • Portable instruments

Product Lifecycle

checked 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.

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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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Most Helpful Review

by JR
In true Analog Devices style, the part performs according to its specification. It is always debatable whether watchdog functions should have disable capability, but having it is extremely useful for development. It is also nice that in production the watchdog function can be permanently enabled just by adding either a pull-up or pull-down to the Watchdog input. Nice part.

All Reviews

by JR, 5 Feb 15
ADM706 power monitor
In true Analog Devices style, the part performs according to its specification. It is always debatable whether watchdog functions should have disable capability, but having it is extremely useful for development. It is also nice that in production the watchdog function can be permanently enabled just by adding either a pull-up or pull-down to the Watchdog input. Nice part.
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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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