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Design the transistor inverter of Fig. 11-4 to operate with a saturation current of 8 mA using a transistor with a beta of 100. Use a level of IB equal to 120% of IB(max) and standard resistor values.

Design the transistor inverter of Fig. 11-4 to operate with a saturation current of 8 mA using a transistor with a beta of 100. Use a level of IB equal to 120% of IB(max) and standard resistor values.

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  1. Design the transistor inverter of Fig. 11-4 to operate with a saturation current of 8 m A using a transistor with a beta of 100 . Use a level of I B equal to 120 % of I B ( m a x ) and standard resistor values. Fig. 11-4
Consider a mixer is shown in the figure 3 . g m 2 = 50 m S , R D = 2 k Ω ,Assume that the transistors are long channel devices with λ = 0 . Also, assume M2 does not enter the triode region. Assume abrupt edges and a 50 % duty cycle for the L 0 and neglect channel. length modulation and body effect.
  • Assume that M1 is an ideal switch. If we decide to replace the R D by inductor L 1 = 1 n H with a quality factor of 20 at 1 G H z . the voltage conversion gain of the circuit becomes

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For a CMOS process with Lmin = 0.18 μm, tox = 4.1 nm, μn = 460 cm2/V⋅s, and Vt = 0.373 V. Express Cox in F/m2 and fF/(μm)2. The gate dielectric is SiO2. a) (7pts) Find Cox and kn' b) (7pts) For an NMOS transistor with a W/L of 60 , calculate the values of Vov, VGS, and VDSmin needed to operate the transistor in the saturation region with a DC current of 0.8 mA. c) (6pts) For the device in b) find the value of Vov and VGS required to cause the device to operate as a 500 ohm resistor for a very small VDS.
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Vtn = 0.8 V, Vtp = -0.9 V, a) Find the logic expression for Z. What function does this circuit implement? b) Draw the pull-up network that completes the CMOS logic circuit. c) Assume that the equivalent inverter has an NMOS transistor with a minimum size of 2 um/250 nm. Determine the equivalent PMOS transistor dimensions (W/L) that ensure tPHL = tPLH for the equivalent inverter. d) Find the NMOS and PMOS transistor dimensions in the CMOS logic circuit so that the propagation delays are equal to the value you found for the inverter in c) for the worst case, assuming an equal load capacitance for both the inverter and the logic circuit. Vtn = 0.8 V, Vtp = -0.9 V, unCox = 250 uA/V2, upCox = 120 uA/V2 is given. The pull-down section of a CMOS logic circuit is shown below. = 250 a) Find the logic expression for Z. What function does this circuit implement? b) Draw the pull-up network that completes the CMOS logic circuit. c) Assume that the equivalent inverter has an NMOS transistor with a minimum size of 2 um/250 nm. Determine the equivalent PMOS transistor dimensions (W/L) that ensure tPHL = tPLH for the equivalent inverter. d) Find the NMOS and PMOS transistor dimensions in the CMOS logic circuit so that the propagation delays are equal to the value you found for the inverter in c) for the worst case, assuming an equal load capacitance for both the inverter and the logic circuit. Vtn = 0.8 V, Vtp = -0.9 V, unCox = 250 uA/V2, upCox = 120 uA/V2 is given. The pull-down section of a CMOS logic circuit is shown below., a) Find the logic expression for Z. What function does this circuit implement? b) Draw the pull-up network that completes the CMOS logic circuit. c) Assume that the equivalent inverter has an NMOS transistor with a minimum size of 2 um/250 nm. Determine the equivalent PMOS transistor dimensions (W/L) that ensure tPHL = tPLH for the equivalent inverter. d) Find the NMOS and PMOS transistor dimensions in the CMOS logic circuit so that the propagation delays are equal to the value you found for the inverter in c) for the worst case, assuming an equal load capacitance for both the inverter and the logic circuit. Vtn = 0.8 V, Vtp = -0.9 V, unCox = 250 uA/V2, upCox = 120 uA/V2 is given. The pull-down section of a CMOS logic circuit is shown below. =120 a) Find the logic expression for Z. What function does this circuit implement? b) Draw the pull-up network that completes the CMOS logic circuit. c) Assume that the equivalent inverter has an NMOS transistor with a minimum size of 2 um/250 nm. Determine the equivalent PMOS transistor dimensions (W/L) that ensure tPHL = tPLH for the equivalent inverter. d) Find the NMOS and PMOS transistor dimensions in the CMOS logic circuit so that the propagation delays are equal to the value you found for the inverter in c) for the worst case, assuming an equal load capacitance for both the inverter and the logic circuit. Vtn = 0.8 V, Vtp = -0.9 V, unCox = 250 uA/V2, upCox = 120 uA/V2 is given. The pull-down section of a CMOS logic circuit is shown below. is given. The pull-down section of a CMOS logic circuit is shown below.

a) Find the logic expression for Z. What function does this circuit implement?

b) Draw the pull-up network that completes the CMOS logic circuit.

c) Assume that the equivalent inverter has an NMOS transistor with a minimum size of 2 müm/250 nm. Determine the equivalent PMOS transistor dimensions (W/L) that ensure a) Find the logic expression for Z. What function does this circuit implement? b) Draw the pull-up network that completes the CMOS logic circuit. c) Assume that the equivalent inverter has an NMOS transistor with a minimum size of 2 um/250 nm. Determine the equivalent PMOS transistor dimensions (W/L) that ensure tPHL = tPLH for the equivalent inverter. d) Find the NMOS and PMOS transistor dimensions in the CMOS logic circuit so that the propagation delays are equal to the value you found for the inverter in c) for the worst case, assuming an equal load capacitance for both the inverter and the logic circuit. Vtn = 0.8 V, Vtp = -0.9 V, unCox = 250 uA/V2, upCox = 120 uA/V2 is given. The pull-down section of a CMOS logic circuit is shown below. for the equivalent inverter.

d) Find the NMOS and PMOS transistor dimensions in the CMOS logic circuit so that the propagation delays are equal to the value you found for the inverter in c) for the worst case, assuming an equal load capacitance for both the inverter and the logic circuit.

a) Find the logic expression for Z. What function does this circuit implement? b) Draw the pull-up network that completes the CMOS logic circuit. c) Assume that the equivalent inverter has an NMOS transistor with a minimum size of 2 um/250 nm. Determine the equivalent PMOS transistor dimensions (W/L) that ensure tPHL = tPLH for the equivalent inverter. d) Find the NMOS and PMOS transistor dimensions in the CMOS logic circuit so that the propagation delays are equal to the value you found for the inverter in c) for the worst case, assuming an equal load capacitance for both the inverter and the logic circuit. Vtn = 0.8 V, Vtp = -0.9 V, unCox = 250 uA/V2, upCox = 120 uA/V2 is given. The pull-down section of a CMOS logic circuit is shown below.
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Consider a CMOS process for which Lmin = 0.18 μm, tox = 4 nm, μn = 450 cm2 /V•s, and Vt = 0.5 V. (a) Find Cox and kn’. (b) For an NMOS transistor with W/L = 2.4 μm/0.18 μm, calculate the values of VOV , VGS , and VDSmin needed to operate the transistor in the saturation region with a dc current ID = 0.5 mA. (c) For the device in (b), find the values of VOV and VGS required to cause the device to operate as a 500-Ω resistor for very small vDS.
Solution
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