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Question 4 The difference amplifier in Figure 5 has parameters R = Rs = 10k12 , R2 and R=21k22. 20kΩ, W R R w V. V12 w R
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Question 4 The difference amplifier in Figure 5 has parameters R = Rs = 10k12 , R2 and R=21k22. 20kΩ, W R R w V. V12 w R
Question 4 The difference amplifier in Figure 5 has parameters R = Rs = 10k12 , R2 and R=21k22. 20kΩ, W R R w V. V12 w R; R. w Figure 5 (a) Determine V, when:- (i) V-IV, V/2=-1V (7 marks) (ii) V = V12 = 1V (5 marks) (b) Determine the common-mode gain. (4 marks) (Hint: Van= V1 = V12, common-mode gain = V. / Vam) (e) Show mathematically that the design of circuit in Figure 5, using resistor ratio in the circuit, can turn the Op. amp circuit to a difference amplifier with equation of V.=(R/R)(V12- V.). (9 marks)
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