Q3 / A non-inverting summing amplifier is shown in Figure 2. (15 Marks) A: Calculate the gain resistance for the in-amp, given that
V1=4mVand
V2=2mV,Ra=1Mohm,R2=50KOhm. (10 Marks)
B: The input resistors,
R1and
R2, should be equal or not? And why? (5 Marks) Q4/Answer both
Aand B (15 Marks) Fig. 2