Use commercially available enhancement-type MOSFETs to realize the tri-state CMOS NAND2 gate as shown in Figure XXXXXXXXXXObtain data sheets for the devices from the manufacturer’s Web pages. 1....

Use commercially available enhancement-type MOSFETs to realize the tri-state CMOS NAND2 gate as shown in Figure 13.30. Obtain data sheets for the devices from the manufacturer’s Web pages.

1. Design a resistive load circuit that will allow clear observation of the high Z state, but will not unduly affect the normal operation of the gate. Using SPICE, apply square wave inputs with the frequencies related as follows: f_A
= 2f_B
= 4f_ENABLE
and verify the function of the gate and the load circuit.

2. Build the circuit using the load designed in (a). Experimentally verify the operation of the gate using square wave inputs with f_A
= 2f_B
= 4f_ENABLE.

3. Experimentally determine V_IL
and V_IH
for the ENABLE input. Do these critical voltages depend on the voltages at A and B?

Figure 13.30