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ECE212s (UG2023) - Introduction to Electronics (39309)
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If Rf = 3.3 kOhm, V1 = 0, and V2 = 3.6 V, then Vo = ..... V.
Assume all resistors are 1 kOhm, v1 = 4.7, v3 = 4.8 V and v2 = v4 = 0 V. The output voltage is equal to ..... V.
One important property that measures the performance of the transistor in analog design is the current efficiency, which is the transconductrance per unit current (gm/IC for BJT and gm/ID for MOSFET). Usually we need large transconductance, but we want to spend small current because we want to save the energy of our battery. So the higher the current efficiency, the better.
If Vov = 0.45, the MOSFET current efficiency (gm/ID) is equal to ..... S/A.
One important property that measures the performance of the transistor in analog design is the current efficiency, which is the transconductrance per unit current (gm/IC for BJT and gm/ID for MOSFET). Usually we need large transconductance, but we want to spend small current because we want to save the energy of our battery. So the higher the current efficiency, the better.
At T = 266 K, the BJT current efficiency (gm/IC) is equal to ..... S/A.
Assume an N-channel MOS device in pinch-off saturation with kn = µn*cox*W/L =0.27 mA/V^2, VTH= 0.3 V and λ=0, the gate is connected to the ground, drain is connected to VDD = 5 V and a current source is connected to the source terminal providing current = 4.8 µA, find the source voltage (Vs) (in volts)
Note: Write the voltage with its sign.
For a MOS transistor operating in pinch-off saturation. If the Channel length is multiplied by 4.5 and "Id" and "W" remain the same , then the overdrive voltage "Vov" is multiplied by how much?
Assume a MOSFET in pinch-off saturation with Vov = 0.362 V. If drain current is kept constant, and W is increased by a factor of 4, the overdrive voltage will change to be equal to ..... V.
Assume that mobility of electrons is 530 cm^2/Vs and mobility of holes is 200 cm^2/Vs If you have an NMOS and a PMOS, both with the same aspect ratio "W/L" and same overdrive voltage "Vov", then what is the ratio of the NMOS current to the PMOS current?