Response to the following problem:
(a) The circuit in Fig. 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.
(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?
