Question

3. Now, consider the MOSFET DA on Figure P1.3. Transistors Q5 and Q6 are n-channel MOSFETs with threshold voltages V,-V,-V-2 V and transconductance parameters k,-k,- k- 100 m/y2 Let lc, In, and Is, be, respectively, the gate, drain, and source currents of Q5. Moreover, let aIn, and Is, be, respectively, the gate, drain, and source currents of Q6. DC analysis: Find the operating points (Qpoine)of both Q5 and Q6. AC analysis: (You can use the analysis by symmetry technique) vDifferential Mode: Express and compute the Differential Mode gain Adm V. Common Mode: Express and compute the Common Mode gain Acem vi. Compute the Common Mode Rejection Ration (CMRR) is dB. a. b. VDD 6.2V R1 R2 Vouti Vout2 02 01 Vin1 Vin2 Rref1 1000Ω -6.2V Vss Figure P1.3

Answer 1