CMOS DESIGN (EC-603 (B)) - Important Questions

Realize NMOS complex logic gates using the Boolean function $Z = A(D + C) + BE$.

Discuss transient analysis of CMOS transmission gate using resistor equivalent circuit.

Design an Ex-OR gate using transmission gate logic.

Write a short note on the following:

Draw the state diagrams of a sequence detector which can detect 101.

Analyze the behavior of an asynchronous sequential toggle circuit with flow table.

The output $Z$ of a fundamental mode, two input sequential circuit is to change from 0 to 1 only when $x_2$ changes from 0 to 1 while $x_1=1$. The output changes from 1 to 0 only when $x_1$ changes from 1 to 0 while $x_2=1$. Find a minimum row reduced flow table.

Explain with neat diagrams the various NMOS fabrication technology.

Draw and explain BiCMOS inverter circuit.

Define threshold voltage, derive its expression and discuss its dependence on various parameters.

How to construct a resistor using MOS transistor?

With the help of required expressions explain Sub-threshold MOS Model.

Explain inverter DC characteristics with inference on MOSFET channel length and estimate the gate voltage range to keep devices on.

Draw and explain the circuit diagram for voltage reference with high sensitivity.