*8.24 For the base-current-compensated mirror of Fig. 8.11, show that the incremental input resistance (seen by the reference current source) is approximately 2VT/IREF. Evaluate R in for IREF = 100 μA. (Hint: Q3 is operating at a current IE 3 = 2IC/β, where IC is the operating current of each of Q1 and Q2. Replace each transistor with its T model and neglect r0.)

8.24 - *8.24 For the base-current-compensated mirror of Fig. 8.11, show that the incremental input resistance (seen by the reference current source) is approximately 2VT/IREF. Evaluate R in for IREF = 100 μA. (Hint: Q3 is operating at a current IE 3 = 2IC/β, where IC is the operating current of each of Q1 and Q2. Replace each transistor with its T model and neglect r0.)

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images - *8.24 For the base-current-compensated mirror of Fig. 8.11, show that the incremental input resistance (seen by the reference current source) is approximately 2VT/IREF. Evaluate R in for IREF = 100 μA. (Hint: Q3 is operating at a current IE 3 = 2IC/β, where IC is the operating current of each of Q1 and Q2. Replace each transistor with its T model and neglect r0.)

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