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Figure P16.54 is a classic CMOS logic gate. (a) What is the logic function performed by the circuit? (b) Design the PMOS network. (c) Determine the transistor W/L ratios to provide symmetrical switching times at twice the switching speed as the basic CMOS inverter with
Figure P16.54
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Microelectronics: Circuit Analysis and Design
- What is the power-delay product for a symmetrical CMOSinverter with (W/L)N = 2/1, (W/L)P = 5/1,VDD = 2.5 V, and C = 0.3 pF? (b) Repeat forVDD = 2.0 V. (c) Repeat for VDD = 1.8 V.? How much power does the inverter dissipate if it is switching at a frequency of 100 MHz?arrow_forwardProve mathematically that if ??/??= 1 in an inverter, the inverter threshold voltage (input voltage at thepoint of sharp transition) = VDD/2. Determine the inverter threshold voltage if ??/??=1/5and Vt=100mV.arrow_forwardA CMOS inverter has (W/L)N =2/1,(W/L)P =5/1 for VDD = 2.0 V, VTN =0.45 V, and VTP = −0.55 V. for VDD = 2.0 V, VTN = 0.55 V,and VTP = −0.45 V.What is the peak current in the logicgate and at what input voltage does it occur?arrow_forward
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