The following amplifier consists of two JFETs in cascade. Fromthe manufacturer's specifications and the DC analysis, it is knownthat the transconductance for each at its point of operation is gm1= gm2 = 2 mS. Also, the output resistance of each transistor is rd= 100 kΩ.
The Following Amplifier Consists Of Two Jfets In Cascade From The Manufacturer S Specifications And The Dc Analysis It 1 (43.64 KiB) Viewed 15 times
From the above data:a) Determine the small-signal equivalent circuit (withoutperformingsimplifications)Simplify the small-signal circuit by paralleling resistorsconveniently and determine:b) The input impedance.c) The output impedance.d) The voltage gain Av if RL = ∞.e) The voltage gain Av, when RL = 5 kΩ.
Vin Zin -1₁ 1 µF C₁ RDi 5 30 ΚΩ 31 ΜΩ 41₁ O S 1 μF HE Co 100 µF 470 R$1 CS1 + 20 V 1 ΜΩ RD23 D S >12 ΚΩ C216 HI 1 μF 470 R $2 CS2 Ω Zout 100 μF + RL Vo
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