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Home » NEWEST Products » New by Manufacturer » Analog Devices Inc. » ADM83xx Supervisory Circuits - Analog Devices
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Analog Devices ADM83xx Supervisory Circuits

Analog Devices ADM83xx Supervisory Circuits

Analog Devices ADM83xx supervisory circuits monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external push button through a manual reset input. Each part is available in a choice of 26 reset threshold options ranging from 2.5 V to 5 V in 100 mV increments. There are also four reset timeout options of 1 ms, 20 ms, 140 ms, and 1120 ms (minimum) and four watchdog timeout options of 6.3 ms, 102 ms, 1600 ms, and 25.6 sec (typical). The ADM83xx are available in 5-lead SOT-23 packages and typically consume only 10 µA, making them suitable for use in low power portable applications.


Features
  • 26 reset threshold options
  • 2.5 V to 5 V in 100 mV increments
  • 4 reset timeout options
  • 1 ms, 20 ms, 140 ms, and 1120 ms (minimum)
  • 4 watchdog timeout options
  • 6.3 ms, 102 ms, 1600 ms, and 25.6 sec (typical)
  • Manual reset input
  • Multiple Reset output options
  • Low power consumption
  • Specified over wide temperature range (-40°C to 125°C)
  • Qualified for automotive applications
  • 5-lead SOT-23 package

Applications
  • Automotive infotainment
  • Microprocessor systems
  • Computers
  • Controllers
  • Intelligent instruments
  • Portable equipment

Functional Block Diagram for ADM83xx
Functional Block Diagram for ADM83xx

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  • Analog Devices Inc.