A/D example - (MSB-2)

• Compare after shifting another part of cap. to VH

  • VI goes up by + 2/16 (VH-VI) - 2/16 (VL-VI) = + 2/16 (VH - VL)
  • original VL - VI goes down and becomes
  • VL - ( VI + .125 (VH - VL) ) = VL - VI - .125 (VH - VL)

• Output > 0

VX

VL

VH

VI (prev)

.125 (VH - VL)

VI (next)

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