Derive the small signal transconductance function

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Reference no: EM131225460

Consider the transconductance feedback amplifier shown in given Figure with R_D = 1.6 k Ω and R_L = 248 Ω.

The transistor parameters are V_{T N} = 0.5 V, V_T _P = -0.5 V, K_n = 2 mA/V₂, K_p = 10 mA/V² , and λ_n = λ_p = 0. The LED turn-on voltage is V_γ = 1.6 V.

Assume the LED smallsignal resistance is r_f = 0. The current source is ideal.

(a) Determine the quiescent values of V_D1, I_DQ3 and V_G2.

(b) Derive the small-signal transconductance function Ag f = I_o/V_i .

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Reference no: EM131225460

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