Consider the voltage-to-current converter in Figure 9.22 using an ideal op- amp. (a) Design the circuit such that the current in a 200 Ω load can be varied between 0 and 5 mA with an input voltage between 0 and −5 V. Assume the op-amp is biased at ±15 V. (b) Using the results of part (a), determine voltage υO ; currents i2 ,i3 ,i4 and the output current of the op-amp for υI = −5 V.
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