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Documents What are the system benefits of fault diagnostics?
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  • +Documents
  • +AD8152 EVB: FAQ
  • +AD8156: FAQ
  • +AD8158ACPZ: FAQ
  • +AD8159: FAQ
  • +ADG1204: FAQ
  • +adg1212: FAQ
  • +ADG1219: FAQ
  • +ADG1236: FAQ
  • +adg1404: FAQ
  • +ADG1409: FAQ
  • +ADG1434: FAQ
  • +ADG1436: FAQ
  • +ADG1604: FAQ
  • +adg1608: FAQ
  • +adg1611: FAQ
  • +ADG1612: FAQ
  • +adg201: FAQ
  • +ADG201ATQ: FAQ
  • +ADG2128: FAQ
  • +ADG3123: FAQ
  • +ADG3247: FAQ
  • +ADG3248: FAQ
  • +ADG324x: FAQ
  • +ADG3300: FAQ
  • +ADG3304: FAQ
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  • +ADG406: FAQ
  • +ADG409: FAQ
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  • +ADG419: FAQ
  • +ADG426: FAQ
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  • +ADG438F: FAQ
  • +ADG442: FAQ
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  • +ADG467: FAQ
  • +ADG490: FAQ
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  • +ADG508AKN: FAQ
  • +adg508f: FAQ
  • +ADG508_thetaJC: FAQ
  • +ADG5208: FAQ
  • -ADG5208F: FAQ
    • Are these parts pin-pin compatible with existing parts?
    • Can I leave the exposed pad floating?
    • Can other channels really continue to operate as normal when another channel is in fault?
    • Can you explain Power-Off protection and its benefits?
    • How do the fault diagnostics work?
    • What are the system benefits of fault diagnostics?
    • What happens to the output during an over-voltage event?
    • What is the recommended supply sequence?
    • What will be the recovery time when switching from a channel in fault to a channel not in      fault?
  • +ADG5248F: FAQ
  • +ADG52xxF: FAQ
  • +ADG5401F: FAQ
  • +ADG5404: FAQ
  • +ADG5436: FAQ
  • +ADG54xx: FAQ
  • +ADG54xxF: FAQ
  • +ADG601: FAQ
  • +ADG621: FAQ
  • +ADG623: FAQ
  • +ADG659: FAQ
  • +ADG701: FAQ
  • +ADG706: FAQ
  • +ADG708: FAQ
  • +ADG709: FAQ
  • +ADG712: FAQ
  • +ADG715: FAQ
  • +ADG728: FAQ
  • +ADG732: FAQ
  • +ADG733: FAQ
  • +ADG734: FAQ
  • +adg752: FAQ
  • +adg779: FAQ
  • +ADG788: FAQ
  • +ADG801: FAQ
  • +ADG804: FAQ
  • +ADG819: FAQ
  • +ADG819BRM: FAQ
  • ADG884 Overvoltage
  • +ADG884: FAQ
  • +ADG901: FAQ
  • +ADG936: FAQ
  • ADGS1412: FAQ
  • +ADN4600: FAQ
  • +ADN4604: FAQ
  • +ADN4605: FAQ
  • +ADN4612: FAQ
  • +ADV3200_3201: FAQ
  • +ADV3202_3203: FAQ
  • +ADV3224_3225: FAQ
  • +ADV3226: FAQ
  • +ADV3228_3229: FAQ
  • +Digital Crosspoint Switch: FAQ
  • +EVAL-ADG2128EBZ: FAQ
  • +Latch-up immune parts: FAQ
  • +Link to Switch and Multiplexer basics: FAQ
  • +Logic Drive: FAQ
  • +MAX14763ETA+: FAQ
  • +MEMS Switch Technology: FAQ
  • +Precision Technology Learning Modules
  • +SW02: FAQ
  • +SW06: FAQ
  • +Switch & Multiplexer: FAQ
  • +Switches and Multiplexers: FAQ

What are the system benefits of fault diagnostics?

Q 

What are the system benefits of fault diagnostics?

 

A 

For systems that are sensitive during a start-up sequence, the active low
operation of the fault flags allow the system to ensure that the ADG5248F is
powered on and that all input voltages are within normal operating range before
initiating operation.  The FF pin introduces a means to diagnose systems in
fault programmatically and can be used to stop long or expensive tests if a
fault occurs.

The fault flags also offer more intelligence to the system, preventing
differential signals that over-voltage on both channels (e.g. ADG5249F dual 4:1
Mux)) presenting as “normal” operation.
The specific fault pin allows the user to debug which input channel is in fault
and can help with system debug (e.g. deciding which input sensor isn’t working
and needs to be replaced). The  system can use this information to skip
over faulty channels and continue measurements on other channels which aren’t
in fault, rather than collecting faulty measurement data.

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