(Solved): Please answer this question fully, will upvote thank you! 1. Figure 2 shows a summing amplifier cir ...
Please answer this question fully, will upvote thank you!
1. Figure 2 shows a summing amplifier circuit, built with an op amp. Figure 2: Summing Amplifier circuit for Question 1 (a) Assume the resistor values are RA=RB=1kΩ and Rf=10kΩ. Show that the output voltage vo is given by vo=−10(vA+vB) (b) Suppose the inputs are vA(t)=100sin(20πt)mV, and vB(t)={200mV,−200mV,0≤t<200ms200ms≤t<400ms Also let vB be periodic with frequency f=2.5Hz. Plot the graph of vo(t), for 0≤t≤400ms (c) The supply voltages for the op amp are VCC=±5V. If vA and vB have equal amplitude, what is the largest possible amplitude they can have that will ensure the summing amplifier circuit always operates in its linear region?