Answer the following True or False Questions: 7 - 8 The following statements ref

Question

Answer the following True or False Questions: 7 - 8

The following statements refer to the output stage at right a) V.Max cannot reach +9.5 V if Inis too small. b) Its input resistance depends strongly on Ri but not on V c) The Bx multiplier has a small ac incremental resistance (-200 ?) d) The Va multiplier can set the standby current Lo) in Qr&Q; v (oversized output transistors) independently of I Q, The classical CMOS class AB output stage suffers from reduced output signal swing in comparison to the BJT Class AB stage shown at right e) 8. Use the open loop frequency Bode response (gain& phase) of an op amp shown below to answer the following questions as true (T) or false (F) (1 pt.each) a) The op amp shown will be UNSTABLE for negative feedback ?= 0.0001 b) The Bode plots indicate that the amplifier's transfer function has just two open loop poles and no zeros c) This amount of low frequency gain (133 dB) cannot be readily obtained from a simplc 2-stage CMOS op amp that we studied

Explanation / Answer

7.a .True

B. False

C. True

D. True

E. False

8. A.False

B. True

C.True

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