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  3. the differential amplifier circuit shown in figure q3 is being...

Question: the differential amplifier circuit shown in figure q3 is being...

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The differential amplifier circuit shown in Figure Q3 is being biased by a three transistor current source. The circuit parameters are -80, r,Ri-8.5 kS2, Re-2 k2, Vr-0.026V, VBEon0.7V, and differential input signal vi-v2. 4 Marks] 4 Marks] 3 Marks] (iv) Discuss how to increase the amplifier input impedance and reduce the distortion on the output 3 marks] (i) Determine the reference current Ii and the output current Icz. (ii) Derive an expression for the amplifier voltage gain in differential mode. (iii) Evaluate the differential voltage gain for single-sided output. signal. (v) Briefly discuss the advantages and disadvantages of three transistor current source. 3 marks] +5 V 8,5 kΩ Vo C2 01 22 CE2 5 V

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