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Consider the circuit shown in the figure. This is an amplifier in which the load resistor RD has been replaced with another NMOS transistor Q2 in the diode configuration. Note that the two transistors conduct equal drain currents. Assuming that Q1 is operated in saturation, find the small-signal voltage Av = vo/vi of the amplifier. The following parameters are given (W/L)1 = 24 μm/0.5 μm, (W/L)2 = 1.5 μm/0.5 μm. You can ignore the influence of λ in the analysis (i.e., assume λ = 0). Type in the value of the small-signal voltage gain, without the unit (V/V), paying attention to the polarity.

Consider the circuit shown in the figure. This is an amplifier in which the load resistor RD has been replaced with another NMOS transistor Q2 in the diode configuration. Note that the two transistors conduct equal drain currents. Assuming that Q1 is operated in saturation, find the small-signal voltage Av = vo/vi of the amplifier. The following parameters are given (W/L)1 = 24 μm/0.5 μm, (W/L)2 = 1.5 μm/0.5 μm. You can ignore the influence of λ in the analysis (i.e., assume λ = 0). Type in the value of the small-signal voltage gain, without the unit (V/V), paying attention to the polarity.

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Consider the circuit shown in the figure. This is an amplifier in which the load resistor R D has been replaced with another NMOS transistor Q2 in the diode configuration. Note that the two transistors conduct equal drain currents. Assuming that Q1 is operated in saturation, find the small-signal voltage A v = v o v i of the amplifier. The following parameters are given ( W L ) 1 = 24 μ m 0.5 μ m , ( W L ) 2 = 1.5 μ m 0.5 μ m . You can ignore the influence of λ in the analysis (i.e., assume λ = 0 ).
Type in the value of the small-signal voltage gain, without the unit ( V / V ) , paying attention to the polarity.

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Consider the MOSFET amplifier shown in the figure. The following parameters are given: VDD = 2.5 V, Vt = 0.5 V, kn = 6 mA/V2, VGS = 0.7 V, RD = 12 kΩ, λ = 0.1 V−1. Analyze the circuit and determine the bias point of the transistor. Then, perform the small-signal analysis and determine the value of the voltage gain Av = vds/vgs. Utilize the provided value of λ only for the small-signal calculations (i.e., ignore λ in the bias analysis).
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