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21. (4pts) Find the

15. (4pts) Find the overall small-signal voltage gain from vi to vo (excluding Rsig). Show your work and include units.   Show your work on paper – no need to submit an answer here.

CMOS Inverter (16pts) Consider a CMOS inverter fabricated in a 65-nm CMOS process with the following parameters: Use this information to answer questions 29-31. Include proper units for full credit and show your work.  Unless otherwise specified and if appropriate, give an equation and a number answer.

17. (2pts) Which MOSFET amplifier type is best for voltage amplification?

16. (4pts) Find the overall small-signal voltage gain from vsig to vo (including Rsig). Show your work and include units.   Show your work on paper – no need to submit an answer here.  

12. (6pts) Draw the small signal model for this circuit used for determining the voltage gain. Label all the components and vi and vo – no numerical values required yet.   Show your work on paper – no need to submit an answer here.  

22. (2pts) Find the collector current, IC. Show your work.   Show your work on paper – no need to submit an answer here.

13. (2pts) Find the input resistance, Rin, looking into the source as shown in Figure 9. Show your work and include units.   Show your work on paper – no need to submit an answer here.

19. (2pts) Find the voltage at the emitter, VE. Show your work. Show your work on paper – no need to submit an answer here.

BJT Amplifiers (26pts) Using the circuit shown in Figure 11, answer the following questions (19-25).  Be sure to include proper units and show your work on your scanned submission for full credit.  Unless otherwise specified and if appropriate, give the equation and numerical answer. Figure 11