Basic Op-Amp Circuits - Summing Amplifiers
5 important questions on Basic Op-Amp Circuits - Summing Amplifiers
Refer to Figure 13–66. Determine the following:
(a) V_R1 and V_R2
(b) Current through Rf
(c) V_OUT![]()
Find the value of Rf necessary to produce an output that is five times the sum of the inputs in Figure 13–66.![]()
Show a summing amplifier that will average eight input voltages. Use input resistances of 10 kΩ each.
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Find the output voltage when the input voltages shown in Figure 13–67 are applied to the scal ing adder. What is the current through Rf?
Determine the values of the input resistors required in a six-input scaling adder so that the lowest weighted input is 1 and each successive input has a weight twice the previous one. Use Rf=100 kΩ
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