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Home/D 8.85 (a) The circuit in Fig. P8.85 is a modified version of the Wilson current mirror. Here the output transistor is “split” into two matched transistors, Q3 and Q4. Find IO1 and IO2 in terms of IREF. Assume all transistors to be matched with current gain β. Figure P8.85 (b) Use this idea to design a circuit that generates currents of 0.1 mA, 0.2 mA, and 0.4 mA, using a reference current source of 0.7 mA. What are the actual values of the currents generated for β = 50?

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D 8.85 (a) The circuit in Fig. P8.85 is a modified version of the Wilson current mirror. Here the output transistor is “split” into two matched transistors, Q3 and Q4. Find IO1 and IO2 in terms of IREF. Assume all transistors to be matched with current gain β. Figure P8.85 (b) Use this idea to design a circuit that generates currents of 0.1 mA, 0.2 mA, and 0.4 mA, using a reference current source of 0.7 mA. What are the actual values of the currents generated for β = 50?

D 8.85 (a) The circuit in Fig. P8.85 is a modified version of the Wilson current mirror. Here the output transistor is “split” into two matched transistors, Q3 and Q4. Find IO1 and IO2 in terms of IREF. Assume all transistors to be matched with current gain β. Figure P8.85 (b) Use this idea to design a circuit that generates currents of 0.1 mA, 0.2 mA, and 0.4 mA, using a reference current source of 0.7 mA. What are the actual values of the currents generated for β = 50?

D 8.85 (a) The circuit in Fig. P8.85 is a modified version of the Wilson current mirror. Here the output transistor is “split” into two matched transistors, Q3 and Q4. Find IO1 and IO2 in terms of IREF. Assume all transistors to be matched with current gain β. Figure P8.85 (b) Use this idea to design a circuit that generates currents of 0.1 mA, 0.2 mA, and 0.4 mA, using a reference current source of 0.7 mA. What are the actual values of the currents generated for β = 50?

D 8.85 (a) The circuit in Fig. P8.85 is a modified version of the Wilson current mirror. Here the output transistor is “split” into two matched transistors, Q3 and Q4. Find IO1 and IO2 in terms of IREF. Assume all transistors to be matched with current gain β. Figure P8.85 (b) Use this idea to design a circuit that generates currents of 0.1 mA, 0.2 mA, and 0.4 mA, using a reference current source of 0.7 mA. What are the actual values of the currents generated for β = 50?