D fill in the output portion of the table in part c

d. Fill in the output portion of the table in part (c) by applying the voltages listed
in the input section. Use the formula to verify that the measured voltages are
correct.
Vin Vout Calculation Formula used for calculation
+0.3V -804 mV -.81V
-0.15V 411 mV .405 V
Vout =− Vin x RF / Rin
-2.0 V 5.37 V 5.4 V
+0.4V -1.07 V -1.08 V
3. To simulate and operate a summing operational amplifier.
a. Draw the circuit shown in Figure 1-4(a) in Multisim.
b. Fill in the output portion of the table in part (b) labeled measured by applying
the voltages listed in the input section.

c.
Using the formula to determine the output of a summing amplifier, verify that
the measured values are correct. It was difficult to get the potentiometers
Formula used for Calculations:
IR1=VR1/R1
IR2=VR2/R2
IR3=VR3/R3
IRF=IR1 + IR2 + IR3
VOUT=-IRFxRF
Conclusion: Lab 1
During test one, the OpAmp Comparator, I never had a time where the expected output,
when both inputs were equal, was 0V.
Test two was pretty straight forward where the expected output voltages were in fact
inverted after the Opamp.
Test three, the Summing OpAmp, worked as expected. My only issue was that I couldn’t
get the input voltages exact in multisim so I adjusted them as close as possible,
recording them and then used the actual measurements in my calculations.
Experiment Questions:
1. A/n ANALOG (analog, digital) signal can vary at any value between the low and high voltage
range supplied by the power supply.
2. A LINEAR (linear, digital) circuit produces signals that are analog.
3. When the voltage applied to the noninverting terminal of an op amp comparator is GREATER
(less, greater) than the voltage at the inverting input, the output will be driven into positive
saturation.