i8

Staying Well Grounded

Fascinating read: Staying Well Grounded.

From this, I reckon that:

  • We should use two power supplies (split analog and digital).
  • We should try to have a ground plane.
  • We should try to have one plane per voltage.
  • We should use decoupling capacitors.
  • We should use a CMOS gate as data buffer for the ADC.
  • We should use ferrite beads for connections to power supplies.
  • We should use a crystal oscillator for the ADC sampling clock.
  • We should move back to a single backplane design.
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