ELET 3132L - Lab #1

Steps 7 through 9: typical CMOS (Complementary Metal Oxide Semiconductor) logic gate
Figure 40: CMOS Logic Gate
Step 7. Construct the circuit shown in Figure 40 above with the +5V supply off..
Step 8. Attach the multimeter between the gate output where Q2, Q3 and Q4 drains are all tied
together (plus lead) and ground (minus lead). Set the multimeter to read Volts DC.
Step 9. Turn on the +5V supply. Measure the output voltage at Q3 drain for each of the four
possible input conditions. Fill in Table 3 below.
Table 3: Truth Table for CMOS Circuit
What logic function does this CMOS gate implement?________________________
ELET 3132L Experiment #1 24 of 25