How large a resistor can be inserted in series

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Reference no: EM13336186

Q- The PMOS transistor in the figure below has V_TP = -0.5V. As the gate voltage v_G is varied from +2.5 V to 0 V, the transistor moves through all of its three possible modes of operation. Specify the value of v_G at which the device changes modes of operation.

Q- All the transistors in the circuits shown in the figure below have the same values of |V_T|, k', W/L, and A. Moreover, A is negligibly small. All operate in saturation at I_D = 1 and |VGS| = |V_DS| = 3 V.

(a) Find the voltages V₁, V₂, V₃, and V₄.

(b) If |V_T| = 1 V and 1 = 2 mA, how large a resistor can be inserted in series with each drain connection while maintaining saturation?

(c) If the current source 1 requires at least 2 V between its terminal to operate properly, what is the largest resistor that can be placed in series with each MOSFET source while ensuring saturated-mode operation of each transistor at I_D = 1? In this limiting situation, what do V_I, V₂, V₃, and V₄ become?

619_transistor characteristics6.png

Reference no: EM13336186

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