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I. Complete the diagram by filling in the boxes with the appropriate values. Show your work for finding δ given ε; a minimum of 3 lines of work needs to be shown for full credit. Find δ for ε = 0.005. Find L = (1 point)

I. Complete the diagram by filling in the boxes with the appropriate values. Show your work for finding δ given ε; a minimum of 3 lines of work needs to be shown for full credit. Find δ for ε = 0.005. Find L = (1 point)

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I. Complete the diagram by filling in the boxes with the appropriate values. Show your work for finding δ given ε ; a minimum of 3 lines of work needs to be shown for full credit.
Find δ for ε = 0.005 . Find L = (1 point)

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Find concise expressions for small-signal gain (Av) for the amplifiers shown below in terms of parameters gm1, gm2, ro1, ro2, Ro, etc. Here, Vb1, Vb2 etc. are DC bias voltages. (Assume that all transistors are in saturation and ). Show your work for full credit.

Find concise expressions for small-signal gain (Av) for the amplifiers shown below in terms of parameters gm1, gm2, ro1, ro2, Ro, etc. Here, Vb1, Vb2 etc. are DC bias voltages. (Assume that all transistors are in saturation and ). Show your work for full credit.
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For all circuits, do not consider channel length modulation for calculating bias points. Unless otherwise specified, channel length modulation effect needs to be considered for small-signal analysis. All answers should be given to the second decimal place. Circuit and device parameters are: Vdd = 5 V;VTn = VTp = 1 V; μnCox = 50 μA/V2; μpCox = 25 μA/V2; λn = λp = 0.01 V−1; Lmin = 1 μm Figure 1 (for problems 1-3) Figure 2 (for problems 5-9) Figure 1: Transistor M1 has (W/L) = (160 μm/2 μm) and a bias current Iout = 2 mA. We desire M1 to be in saturation. You should assume λn = 0 for problems (1)-(3). Determine the ratio R1 /R2 required. 1 point Let VTn increase by 10% to 1.1 V. What is the new value of Iout in mA ? 1 point Let μnCox increase by 10% to 55 μA/V2. What is the new value of Iout in mA ? 1 point Figure 2: The circuit has Iref = 2 mA and Vp = 4 V. Transistors M1, M2 and M3 have (W/L) = (80 μm/1 μm). Determine the value of vx. (in volts) 1 point Determine the minimum allowable value of Vb (in volts) such that all devices are in saturation. 1 point Determine the maximum allowable value of Vb (in volts) such that all devices are in saturation. 1 point Determine Vb (in volts) such that vX = VY. 1 point determine the output resistance of this circuit ∂Vp/∂Iout in MΩ. 1 point Description for questions 9-10: An NMOS device with ID = 1 mA must operate in saturation with drain-source voltages as low as 0.5 V. The minimum required small-signal output impedance is 400 kQ. {Hint: You need to use the relations: rout = 1 /(λ⋅ID); λ⋅L = constant; and expression for VDS, sat = VGS−VT} Determine the length of the device in μm. 1 point Determine the width of the device in μm. 1 point

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For all circuits, do not consider channel length modulation for calculating bias points. Unless otherwise specified, channel length modulation effect needs to be considered for small-signal analysis. All answers should be given to the second decimal place. Circuit and device parameters are: Vdd = 5 V; VTnn = VTp = 1 V; μnCox = 50 μA/V2; μpCox = 25 μA/V2; λn = λp = 0.01 V−1; Lmin = 1 μm Figure 1 (for problems 1-3) Figure 2 (for problems 5-9) Figure 1: Transistor M1 has (W/L) = (160 μm/2 μm) and a bias current Iout = 2 mA. We desire M1 to be in saturation. You should assume λn = 0 for problems (1)-(3). Determine the ratio R1 /R2 required. 1 point Let VTn increase by 10% to 1.1 V. What is the new value of Iout in mA ? 1 point Let μnCox increase by 10% to 55 μA/V2. What is the new value of Iout in mA ? 1 point Figure 2: The circuit has Iref = 2 mA and VP = 4 V. Transistors M1, M2 and M3 have (W/L) = (80 μm/1 μm). Determine the value of vx. (in volts) 1 point Determine the minimum allowable value of Vb (in volts) such that all devices are in saturation. 1 point Determine the maximum allowable value of Vb (in volts) such that all devices are in saturation. 1 point Determine Vb (in volts) such that VX = VY. 1 point determine the output resistance of this circuit ∂Vp/Iout in MQ. 1 point Description for questions 9-10: An NMOS device with ID = 1 mA must operate in saturation with drain-source voltages as low as 0.5 V. The minimum required small-signal output impedance is 400 kΩ. {Hint: You need to use the relations: rout = 1 /(λ⋅ID); λ⋅L = constant; and expression for VDS, sat = VGS−VT }Determine the length of the device in μm. 1 point Determine the width of the device in μm. 1 point

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