1) For the circuit shown, assume VT = 0.5V and K = 2mA/V^2. VDD = 6V RD RG1 VD i1 = 10µA iDS = 4mA RG2 (a) Find the values of RD, RG1, and RG2 that establish a drain current of 4mA, I1 = 10µA, and a drain voltage VD large enough to allow saturation operation for a 2V negative swing from VD. (Another way to say this would be that VD should be 2V above the minimum VDS required for saturation.) (b) Using the values of RD, RG1, and RG2 from part (a), what is the minimum value of VDD for which the MOSFET operates in saturation?
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Substituting the given values, we get: 4mA = (Z/2)(6V - 10pA(RG1 + RD) + VD)^2 Simplifying and solving for RD, we get: RD = (Vop - VD)/(Ids/Z - i1(RG1 + RD)) Substituting the given values, we get: RD = (6V - VD)/(4mA/Z - 10pA(RG1 + RD)) Show more…
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