ECE 301
Fall Semester, 2007
Home Work #6
Due: November 8, 2007
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Name _________________________________
Print(last, first)
Use Engineering Paper. Work only on one side of the paper. Use this sheet as your cover sheet, placed
on top of your work and stapled in the top left-hand corner. Number the problems at the top of the page,
in the center of the sheet. Do neat work. Underline your answers. Show how you got your
equations. Be sure to show how you got your answers. Problems count 15% each.
(1) You are given the op amp configuration shown in Figure 1. Assume Vin = 2 V DC.
Find Vo.
2 k
1 k
+
+
Vin
1 k
Vo
3 k
_
_
Figure 1: Circuit for problem 1.
(2) You are given the op amp configuration of Figure 2. Find vo.
R2
+
R1
2V
+
_
10k 
v0
_
Figure 2: Circuit for problem 2.
(3) You are given the op amp circuit of Figure 3. Find vo/vin.
R1
+
_
vin
+
R2
R2
v0
R1
_
Figure 3: Circuit for problem 3.
(4) You are given the op amp circuit of Figure 4. Find the output voltage.
Ans: vo = -6vin.
500 
500 
500 
250 
+
+
_
vin
v0
_
Figure 4: Circuit for problem 4.
(5) You are given the op amp circuit of Figure 5. Find vo.
Ans: vo = (2/3)vS
3k 
+
_
2k 
vS
3k 
+
v0
2k 
_
Figure 5: Circuit for problem 5.
(6) You are given the op amp circuit of Figure 6. Find vo in terms of vin.
Ans: vo = (1/3)vin.
3
2
6
+
+
Vin
6
_
Figure 6: Circuit for problem 6.
Vo
_