Or

Blk

+

-

Voltage

FollowerBlk

50

TTL

Function Generator

R

C

Yel

Blk

Or Ch0 Hi

BlkCh0 Lo

Ch1 Hi

Ch1 Lo

GREEN

WHITE

R+R+RR

R+R+RRRR--RR

RR--RR

++

--

--

++

RRiiRRii

RRff

RRff

RED

BLACK EEoutout

EEinin

++

--

--12V12V

+12V+12V

2

36

7

4

Load Cell

--12V12V

+12V+12V

Operational Amplifier (op-amp)Operational Amplifier (op-amp)

Positive powersupply (+12V)

Negative powersupply (-12V)

Inverting input

Non-inverting inputNon-invertinginput (V+)

Invertinginput (V-)

Negative power supply (-12V)

+

-741

4

1

2

3

5

6

7

8

Output

Output (Vo)

Positive power supply (+12V)

Electrical SchematicSymbol

Integrated Circuit8 Pin DIP (Dual In-line Package)

Single Input, Inverting ampSingle Input, Inverting amp

+

-

R1 R2

Eo

-

+-

+

Ei

E*-

+

i- +12V

-12V

i2i1

R3

Single Input, Inverting ampSingle Input, Inverting amp

i1

20 E

R

RE

+

-

R1 R2

Eo

-

+-

+

Ei+12V

-12VR3

213 R

1

R

1

R

1

Multiple input, summing amplifierMultiple input, summing amplifier

R2

-

- +

+

R1

+

-

-

+

R3

2

2

31

1

3O E

R

RE

R

RE

Eo

E1

E2

R4

3214 R

1

R

1

R

1

R

1

+12V

-12V

Single input, non-inverting amplifierSingle input, non-inverting amplifier

R1

+

-

-

+

R2

i1

2O E

R

R1E

EoEi

-

+

+12V

-12V

R3

213 R

1

R

1

R

1

Dual input, difference amplifierDual input, difference amplifier

11

22

1

212

1

2o E

R

RE

R

REE

R

RE

-

+

+

R2

-

-

+

-

+

EoE2

E1

R1 R2

R1

+12V

-12V

““Buffered” Potentiometer via Buffered” Potentiometer via Voltage DividerVoltage Divider

+12V

-

+

-

+

-

+

-12V

EOEi

+12V

-12V

Integrating ampIntegrating amp

+

-

R

Eo

-

+-

+

Ei

C

t

0 oi21

O (0)EdtECR

1E

+12V

-12V

ComparatorComparator

-

- +

+

+

-

-

+

refi

refi

OEEif12V

EEif12VE

Eo

Eref

Ei

+12V

-12V

Instrumentation AmpInstrumentation Amp

-

+ +

--

+-

+

RG

i3

1

2O E

21E

GR

R

R

R

R3

R2R1

R3 R2R1 EO

-

+

Ei

-

+

Ein

741-

+

+12V

-12V

2

3

6

7

4

4.237

COMVHz

COM

-12V

+12V

DMMFunction Generator

-

+

Eout

-

+

Ein

741-

+

+12V

-12V

2

3

6

7

4

741-

+

+12V

-12V

2

3

6

7

4

741-

+

+12V

-12V

2

3

6

7

4

741-

+

+12V

-12V

2

3

6

7

4