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98-Comp-A1: December 2015

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Diode Limiter/Rectifier and Clamper
  2. Question 2 NMOS Common-Source Amplifier with Diode-Connected Load
  3. Question 3 Differential Active High-Pass Amplifier
  4. Question 4 Differential Pair with Current-Mirror Load
  5. Question 5 Op-Amp Astable Multivibrator
  6. Question 6 CMOS Inverter Sizing/Delay and a Clocked Cross-Coupled Latch
  7. Question 7 MOSFET Current-Steering (Binary-Weighted) DAC

Start with Question 1 →

98-Comp-A1, Electronics — National Exams, December 2015. Open-book, 3 hours; seven 20-mark questions, five to be marked (all seven answered below as a complete study resource, per the standing "answer all M" rule). Unless stated otherwise, diode drops $V_D=0.7\text{V}$.

Reference texts: Sedra & Smith, Microelectronic Circuits (diode limiters/rectifiers/clampers, MOSFET/BJT small-signal amplifiers, active loads and current mirrors, active-RC filters, differential pairs with current-mirror loads, op-amp astable multivibrators, CMOS inverter design and delay, clocked cross-coupled latches, current-steering DACs) — the single reference text covering every question on this paper.