EMC Question of the Week: October 4, 2021

Components on a circuit board

IBIS is a standard file format for characterizing a digital component's

  1. inputs and outputs
  2. power bus noise
  3. heat dissipation requirements
  4. conducted emissions


The correct answer is “a.” IBIS or Input/Output Buffer Information Specification is a standard method for conveying information about the electrical behavior of a digital device's inputs and outputs without revealing proprietary information about the interface design. IBIS models include information related to the electrical properties of the on-die circuitry as well as package parasitics. IBIS models are widely used for signal integrity modeling, but also provide information that can be helpful for making EMC-related design decisions. 

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