Question
Using an average value of $2.9 \mathrm{~mA}$ for the $I_{D S S}$ of the 2N3797 MOSFET of Fig. 31 , determine the level of $V_{G S}$ that will result in a maximum drain current of $20 \mathrm{~mA}$ if $V_{P}=-5 \mathrm{~V}$.
Step 1
We are given the values of IDSS (2.9 mA), VP (-5 V), and the desired maximum drain current (20 mA). Show more…
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Consider a p-channel MOSFET with the following parameters: $k_{p}^{\prime}=0.12 \mathrm{~mA} / \mathrm{V}^{2}$ and $W / L=20$. The drain current is $100 \mu$ A with applied voltages of $V_{S G}=0$, $V_{B S}=0$, and $V_{S D}=1.0 \mathrm{~V} .(a)$ Determine the $V_{T}$ value. $(b)$ Determine the drain current $I_{D}$ for $V_{S G}=0.4 \mathrm{~V}, V_{S B}=0$, and $V_{S D}=1.5 \mathrm{~V} .(c)$ What is the value of $I_{D}$ for $V_{S G}=0.6 \mathrm{~V}, V_{S B}=0$, and $V_{S D}=0.15 \mathrm{~V} ?$
Consider an n-channel MOSFET with the following parameters: $k_{n}^{\prime}=0.18 \mathrm{~mA} / \mathrm{V}^{2}$, $W / L=8$, and $V_{T}=0.4 \mathrm{~V}$. Determine the drain current $I_{D}$ for (a) $V_{G S}=0.8 \mathrm{~V}$, (c) $V_{G S}=0.8 \mathrm{~V}, V_{D S}=2.5 \mathrm{~V} ;$ and $V_{D S}=0.2 \mathrm{~V} ;(b) V_{G S}=0.8 \mathrm{~V}, V_{D S}=1.2 \mathrm{~V}$ (d) $V_{G S}=1.2 \mathrm{~V}, V_{D S}=2.5 \mathrm{~V}$.
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