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Figure 4 shows a differential amplifier where the input voltage is Vin = vil - Vi2 and the output voltage is Vout =Vo- %3D %3D

Figure 4 shows a differential amplifier where the input voltage is Vin = vil - Vi2 and the output voltage is Vout =Vo- %3D %3D

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Figure 4 shows a differential amplifier where the input voltage is Vin = Vil the output voltage is Vout - Vi2 and %3D Vo- (a) What kind of amplifier is it? Draw the small equivalent circuit and calculate the differential voltage gain G, in the case of balanced input and unbalanced output. For the calculation, consider the output resistances roi of the two transistors as open circuits (negligible current flowing in them). Show the detail of the calculation and state any assumption. (b) (c) What is Gv if you include the output resistances roi in the analysis? For the balanced input and identical transistors, the current variation in M1 and M2 are equal and opposite: i1 = -i2 (the current flowing in Rs is i- 0). V DD Rp1 Rp2 VinLM, M2 V2 V'ss =0 V Figure 4
Transcribed Image Text:Figure 4 shows a differential amplifier where the input voltage is Vin = Vil the output voltage is Vout - Vi2 and %3D Vo- (a) What kind of amplifier is it? Draw the small equivalent circuit and calculate the differential voltage gain G, in the case of balanced input and unbalanced output. For the calculation, consider the output resistances roi of the two transistors as open circuits (negligible current flowing in them). Show the detail of the calculation and state any assumption. (b) (c) What is Gv if you include the output resistances roi in the analysis? For the balanced input and identical transistors, the current variation in M1 and M2 are equal and opposite: i1 = -i2 (the current flowing in Rs is i- 0). V DD Rp1 Rp2 VinLM, M2 V2 V'ss =0 V Figure 4
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