Operational Amplifier/ Part2
Islamic university –Gaza
Electrical Engineering
Electronic II Lab
Fall-2017
Experiment (2)
Instructors:Eng. Samah K. Qalaja
Eng. Mohammed S. Abuwarda
(6) Comparator Configuration
Input Vref output V
Input Vref output V
Non-inverting Comparator
Time
0s 0.5ms 1.0ms 1.5ms 2.0ms 2.5ms 3.0ms
V(R2:2)
0V
10V
20V
Time
0s 0.5ms 1.0ms 1.5ms 2.0ms 2.5ms 3.0ms
V(R2:2)
-20V
-10V
0V
Input Vref output V
Input Vref output V
Inverting Comparator
Time
0s 1.0ms 2.0ms 3.0ms
V(R1:1) V(R2:2)
-5.0V
0V
5.0V
Time
0s 0.5ms 1.0ms 1.5ms 2.0ms 2.5ms 3.0ms
V(R1:1) V(R2:2)
-10V
0V
10V
(7) Inverting Integrator Configuration
0
1( )
1
o o in
c
ino
o in
V V V
X R
j C
VV
j CR
V V dtRC
Time
0s 1.0ms 2.0ms 3.0ms
V(C5:2)
-20V
0V
20V
Time
0s 1.0ms 2.0ms 3.0ms
V(R4:1)
0V
1.0V
2.0V
(8) Inverting Differentiator Configuration
00 0
1( )
( )
oin in
c
o in
ino
VV V
X R
j C
V RC j V
dVV RC
dt
1 1
1 11600
2 2 (100)(1 )cf Hz
R C
2
1
101 1 2
10
o
i
V R kGain
V R k
(9) filters(LPF)
Frequency
1.0Hz 100Hz 10KHz 1.0MHz
V(U1:OUT) V(U1:-)
0V
1.0V
2.0V
1 1
1 11600
2 2 (100)(1 )cf Hz
R C
2
1
101 1 2
10
o
i
V R kGain
V R k
HPF
Frequency
1.0Hz 100Hz 10KHz 1.0MHz
V(C17:1) V(U1:OUT)
0V
1.0V
2.0V
BPF
Frequency
1.0Hz 100Hz 10KHz 1.0MHz
V(vv:2) V(C22:2)
0V
2.0V
4.0V