Course

Keywords: Cadence, DC characteristics, CMOS, Pseudo, Dynamic.

• Transfer and Output Characteristics of PMOS and NMOS: Measurement of Threshold voltage, β, γ, and λ.
• Pass transistor and transmission logic based AND and OR gates: checking “strong” and “weak” ones and zeros.
• Inverter output response for a given input: Measurement of rise time, fall time, propagation delay, short circuit power and switching power for zero load and a finite capacitance load.
• Voltage transfer characteristics (VTC) of Inverter: Measurement of mid-point voltage (switching threshold) and noise margin.
• Realization of CMOS NAND and NOR gates: VTC characteristics and measurement of switching thresholds.
• Realization of Boolean function: sizing for equal rise time and fall time.
• Mirror logic based XOR and XNOR gates.
• Pseudo NMOS based Boolean expression realization: Checking the output swing, input capacitance and short circuit power.
• Dynamic and Domino logic based Boolean expression realization: Checking charge sharing and monotonicity.
• Transistor level realization of D Flip-flop with set and reset.

Course Objectives

• To explore and understand the characteristics, parameters and second order effects of PMOS and NMOS.
• To experiment and analyze the DC characteristics of CMOS gates.
• To build and analyze the complex Boolean expressions using different logic realizations.

Course Outcomes

• CO1: Able to analyze transfer and output characteristics of PMOS and NMOS.
• CO2: Able to understand the different VTC characteristics of basic gates.
• CO3: Able to synthesize and implement combinational and sequential digital circuits using CMOS logic.
• CO4: Able to implement combinational logics using Mirror, Pseudo, Dynamic logics.

CO – PO Mapping

Evaluation Pattern 80 : 20 (Internal: External)