Lecture 3: Superthreshold operation (Tobi Delbruck)

5, Neurormophic Engineering 1

  • Blackboard preview for this week’s material
  • Review Subthreshold (weak inversion
  • Look at real subthreshold data
  • Superthreshold (above threshold, strong inversion) operation in triode and saturation region, overdrive voltage, velocity saturation
  • The specific current Is (the current at threshold)
  • Drain conductance (the Early effect)
  • 2nd-order drain effects: drain induced barrier lowering (DIBL), impact ionization
  • The intrinsic voltage gain of a transistor