Determine the Q-point and VGS for the circuit shown below. VDD = 10 V,RS = 39 kohm, RD = 75kohm, R1 = 1 Mohm, R2 = 1.5 Mohm, KN = 50 uA/V2, VTN = 1V, KP = 25 uA/V2, VTP = -1V. Make sure to select the correct K and VT for the type of MOSFET. a) (2pt) What type of MOSFET is shown in the circuit? Label the gate, source, and drain. b) (3pt) Identify three equations which provide the Q-point solution. Hint: (Remember KVL on the two loops and making an assumption for the region of operation. If you make a bad assumption while solving please update this answer.) c) (5pt) Solve the three equations to get the Q-point. Make sure to show that your assumption for the region of operation is correct.
A PMOS current mirror consists of three PMOS transistors as shown below, one diode-connected (drain and gate terminals are tied together) and two used as current outputs. All transistors have |Vt| = 0.6 V, kp = 100 uA/V2, and L = 1.0 um but three different widths, namely, 10 um (Q1), 20 um (Q2), and 40 um (Q3). (a) When Q1 transistor is diode-connected and is supplied from a 100 uA current source, find the output currents I2 and I3. (b) Find the output currents I1 and I3 when Q2 transistor is diode-connected. (c) Find the output current I3 when both Q1 and Q2 transistors are diode-connected. (Hint: find the effective width first) (d) Find the output current I2 when both Q1 and Q3 transistors are diode-connected. (e) Calculate the values of VSG for the following case: 1) Q1 is diode-connected, and 2) Q1 and Q2 are diode-connected.
When the diode-connected transistor is a 100-uA source, how many different output available? Repeat with two of the transistors diode and the third used to provide current output. For each possible input-diode combination, give the values of the currents are output currents and of the VSG that results. A PMOS current mirror consists of three PMOS transistors, one diode connected and two used as current outputs. All transistors have lVt| = 0.6 V, kp