For an op amp with negative feedback, the output is to.

For the summing Op-Amp, find the output voltage Vout?

Figure 6 (a) shows the circuit diagram for a differential amphfier. You may assume that M and M, have identical parameters. Referring to Figure 6 (a): (a) What kind of amplifier is it? What is its role in a three-stage op amp? Draw the small signal equivalent eircuit and derive the differential voltage gain Aag. For the analysis consider RDI RD2 >>Rp State any assumption. (b) RD. gml gm gm, and r re=r What is the new Adr in the circuit of Figure 6 (b), where a PMOS current source has replaced the two drain resistors Ror R Rp and a NMOS current sink has replaced the source resistor Rs? (c) What are the advantages in using the circuit of Figure 6 (b) instead of Figure 6 (a) to realize an op amp? (d) Ven Ms Mg Rp1 Rpa Vo HM, My M Ma M3 Vss 0 V Vss 0 V Figure 6(b) Figure 6 (a)

please do question 2 and 3