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SIMULATION OF ADC AND DAC USING MULTISIM AIM: To simulate DAC and ADC using MULTISIM APPARATUS REQUIRED: 1. MULTISIM Software 2. Personal Computer CIRCUIT DIAGRAM: Binary Weighted DAC VCC1 -15V

VCC

R5

XMM1

5V 10kOhm

4

U1

R1LSB 2

100kOhm

6

R2

3

50kOhm

7

1

5

741

R3 VCC2

25kOhm 15V

R4MSB 12.5kOhm

R-2R Ladder DAC VCC1 -15V

R8 4

R3 R7 2kOhm

1kOhm R6 2kOhm

R2 1kOhm R5 2kOhm

R1 1kOhm R4 2kOhm

U1

2 741

6

3 7

1

5

VCC2 V1 -5 V

XMM1

2kOhm

15V

Flash ADC VCC 4V U1

R2

U2

1kOhm

XSC1

U3

R3

G

1kOhm

T A

U4

R4 1kOhm

R5

U5

R6

U6

R7

U7

1kOhm

1kOhm

1kOhm

U8

R8 1kOhm V1 5 V 1kHz 0Deg

U11 1 2 3 4 5 6 7 8 12

0 1 2 3 4 5 6 7 EI

A0 9 A1 10 A2 11 GS 14 EO 13

74LS148N

B

C

D

PROCEDURE: 1. 2. 3. 4.

Open the MULTISIM Software by double clicking the executable file. Open a new file. Design ADC and DAC. Select the components from the component manager and connect it as per the circuit diagram. 5. Set the input, save the file and simulate it. 6. View the response from Multimeter/CRO by double clicking it. RESULT: DAC and ADC were designed and their responses were obtained using MULTISIM