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