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98-Comp-A1: May 2014

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

  1. Question 1 Diode Limiter and Precision Rectifier
  2. Question 2 MOS Amplifier with Current-Mirror Active Load
  3. Question 3 Active-RC Low-Pass Filter
  4. Question 4 BJT Inverter and RTL NOR Gate
  5. Question 5 Four-Stage RC Phase-Shift Oscillator
  6. Question 6 CMOS Inverter Sizing and Ring Oscillator
  7. Question 7 Dual-Slope Integrating ADC and Weighted-Resistor DAC

Start with Question 1 →

98-Comp-A1, Electronics — National Exams, May 2014. Open-book, 3 hours; seven 20-mark questions, five to be marked (all seven answered below as a complete study resource). Unless stated otherwise, diode drops $V_D=0.7\text{V}$.

Reference texts: Sedra & Smith, Microelectronic Circuits (diode limiters/rectifiers, MOSFET/BJT small-signal amplifiers, active loads and current mirrors, active-RC filters, BJT switches, RTL logic, CMOS inverter design, RC oscillators, ring oscillators, ADC/DAC) — the single reference text covering every question on this paper.