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Asked: 2023-08-12T02:58:14-04:00 In:

8.19 For the base-current-compensated mirror of Fig. 8.11, let the three transistors be matched and specified to have a collector current of 1 mA at VBE = 0.7 V. For IREF of 100 µA and assuming β = 100, what will the voltage at node x be? If IREF is increased to 1 mA, what is the change in VX? What is the value of IO obtained with VO = VX in both cases? Give the percentage difference between the actual and ideal value of IO in each case. What is the lowest voltage at the output for which proper current-source operation is maintained? 1.187 V; 0.113 V; 99.98 μA; 0.9998 mA, −0.02%; 0.3 V

Venkyelectrical
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8.19 For the base-current-compensated mirror of Fig. 8.11, let the three transistors be matched and specified to have a collector current of 1 mA at VBE = 0.7 V. For IREF of 100 µA and assuming β = 100, what will the voltage at node x be? If IREF is increased to 1 mA, what is the change in VX? What is the value of IO obtained with VO = VX in both cases? Give the percentage difference between the actual and ideal value of IO in each case. What is the lowest voltage at the output for which proper current-source operation is maintained?

1.187 V; 0.113 V; 99.98 μA; 0.9998 mA, −0.02%; 0.3 V

8.19 For the base-current-compensated mirror of Fig. 8.11, let the three transistors be matched and specified to have a collector current of 1 mA at VBE = 0.7 V. For IREF of 100 µA and assuming β = 100, what will the voltage at node x be? If IREF is increased to 1 mA, what is the change in VX? What is the value of IO obtained with VO = VX in both cases? Give the percentage difference between the actual and ideal value of IO in each case. What is the lowest voltage at the output for which proper current-source operation is maintained? 1.187 V; 0.113 V; 99.98 μA; 0.9998 mA, −0.02%; 0.3 V

microelectronics by sedra & smith chapter 8 questions

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