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Multi Ring Active Analog Protection (MAAP) Guardring

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sridhartv25

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Hello all,

Does any one have the idea about Multi Ring Active Analog Protection (MAAP) or “active protection” guard ring ( or Floating PN guard ring) , In this case we connect the dntub back to substrate and left it as floating how this connection help in prevnting latchup.

Regards,
Sridhar.
 

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