Question 2. Differential Pairs with Source Degeneration Assume All MOSFET have identical WL and 12 μnCoxWL = 10 mA⋅V2, λ = 0.1 V−1, VTH = 1 V, Rs = 10 kΩ, Iref = 10 μA, VDD = 5 V (a). Determine the DC currents and voltages at A and B . Ignore channel length modulation for this question only. (b). Determine the differential gain for the small signal by using the half circuit. C can be regarded as the ground for AC small signals. (c). Determine the common mode gain for a common mode small signal input and derive the value of CMRR.
In the circuit shown below the voltage, Vcc = 7.7 V, Rc = 1 kΩ, RE = 1 kΩ. Assume VBE(on) = 0.7 V, VCE(sat) = 0.2 V, β = 99. Determine current I1, I2, and voltage Vx. Give your answer correct to three decimal places. I1 = number (rtol = 0.01, atol = 1 e−05) mA I2 = number (rtol = 0.01, atol = 1 e−05) mA Vx = number (rtol = 0.01, atol = 1 e−05)