For the three stage op amp with nested Miller compensation in Fig 9 30c, determine the values of the compensation capacitors that give a 45 brvbar phase margin when the op amp is in a unity gain negative feedback loop (f 1) Assume that the zeros due to feed forward have been eliminated Design for w...

a 0 g m0 R 0 g m1 R 1 g m2 R 2 ...

For the three-stage op amp with nested Miller compensation in Fig. 9.30c, determine the values of the

Question:

For the three-stage op amp with nested Miller compensation in Fig. 9.30c, determine the values of the compensation capacitors that give a 45—¦ phase margin when the op amp is in a unity-gain negative feedback loop (f=1). Assume that the zeros due to feed forward have been eliminated. Design for widely spaced real poles. Take R₀= R₁= R₂= 5 kÎ©, C₀= C₁= 0.5 pF, and C₂= 6 pF. Use g_m0= g_m1and g_m2= 6_gm1.

Figure 9.30 c:

Cm2 Cm1 Vo V2 V1 C2 R1 8m1'1 Sm2'2 i, = 8movin Ro in