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Grace Lab1 1
Jessy Grace
G00170423
Lab 1: Inro to Process Control
Grantham University
8/18/2021

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Grace Lab1 2
Digital Signal Conditioning Lab
Introduction:
Week two lab, digital conditioning, consists of digital to analog conversions using the 1 & 0 digits or
better known as the bits of a word. Better put, signal conditioning is taking the input signal to achieve
data or control a process. The two exercises in this lab will model how this is done.
Equipment/Components:
Multimeter
General Comparator
3 resistors
3Vpp sine wave
Oscilloscope
8-bit VDAC
single-pole double-throw switch.
Multisim
Procedure:
For part one, complete the comparator design by doing the proper calculations to figure the desired
resistance of the resistors. Use 1.25V as the threshold and once calculated simulate in Multisim to
validate the results. Also, use the 3Vpp for the Vin and plot the wave. Then, for part two, select the 8-bit
VDAC and properly design the circuit with the 12V reference. Calculate the analog output voltage first to
record in data table. Simulate and record the measured voltage in the data table. Record all data of
simulations and include screenshots.
Calculations:
Vref = R1/(R1+R2) X 5
Thererfore
R2 = 3R1
Asumming
R1 = R3 = 1 K
Then
R2 = 3K
Part 2 calculations
Resolution = 12/ (256 -1) = 47mV
Analog output voltage = Resolution *Volts*N
10
0 0 0 0 0 0 0 1 1/ 2 n−1 121=47mV

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Grace Lab1 1 Jessy Grace G00170423 Lab 1: Inro to Process Control Grantham University 8/18/2021 Grace Lab1 2 Digital Signal Conditioning Lab Introduction: Week two lab, digital conditioning, consists of digital to analog conversions using the 1 & 0 digits or better known as the bits of a word. Better put, signal conditioning is taking the input signal to achieve data or control a process. The two exercises in this lab will model how this is done. Equipment/Components: • • • • • • • • Multimeter General Comparator 3 resistors 3Vpp sine wave Oscilloscope 8-bit VDAC single-pole double-throw switch. Multisim Procedure: For part one, complete the comparator design by doing the proper calculations to figure the desired resistance of the resistors. Use 1.25V as the threshold and once calculated simulate in Multisim to validate the results. Also, use the 3Vpp for the Vin and plot the wave. Then, for part two, select the 8-bit VDAC and properly design the circuit with the 12V reference. Calculate the analog output voltage first to record in data table. Simulate and record the measured voltage in the data table. Record all data of simulations and include screenshots. Calculations: Vref = R1/(R1+R2) X 5 Thererfore R2 = 3R1 Asumming R1 = R3 = 1 K Ω Then R2 = 3KΩ Part 2 calculations Resolution = 12/ (256 -1) = 47mV Analog output voltage = Resolution *Volts*N10 0 0 0 0 0 0 0 1 →1/ 2 n−1 ∗12∗1=47mV Grace Lab1 0 0 0 0 1 0 0 1 →1/ 2 n−1 ∗12∗9=423m ...
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