ANALOG TO DIGITAL CONVERTER - PowerPoint PPT Presentation

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ANALOG TO DIGITAL CONVERTER

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ANALOG TO DIGITAL CONVERTER – PowerPoint PPT presentation

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Title: ANALOG TO DIGITAL CONVERTER


1
ANALOG TO DIGITAL CONVERTER
  • Group 8
  • Advisor Dr. Krompholz
  • Members
  • Russell Vela
  • Linda Ekhator
  • Yasser Khan

2
Objective
  • Design and construct an A/D converter with a 3
    bit output using voltage comparators.

3
Additional Components
  • Incorporation of MOSFET into 3rd bit design for
    use as a switch.
  • Use of diodes for directing voltage traffic.

4
What is a 3bit ADC?
  • Converts analog signal into a digital output.
  • Depending on input voltage, each bit reacts
    differently.

5
2-bit ADC Design
6
3rd Bit Design
7
3-bit ADC Design
8
Bits 1 and 2 Waveform
9
Bit 3 Waveform
10
Full 3-bit Waveform
11
Digital Waveform Comparison
12
Constructed 3 bit circuit
13
Stand Alone Equipments Used for testing
  • Oscilloscope
  • Function Generator
  • Power Supply
  • Multi-Meter

14
Bit 1 on Oscilloscope
15
Bit 2 on Oscilloscope
16
Bit 3 on Oscilloscope
17
Elvis Testing
18
Elvis Functions used for testing
  • Oscilloscope
  • Function Generator
  • Power Supply
  • LED Display
  • Multi-Meter

19
Bit 1 on Elvis Oscilloscope
20
Bit 2 on Elvis Oscilloscope
21
Bit 3 on Elvis Oscilloscope
22
Stand Alone vs. Elvis
23
3bit Circuit in Action
24
Gantt Chart
25
Budget
26
References
  • 1 D.A. Johns and K. Martin, Analog Integrated
    Circuit Design, Chapters 11 and 12, John
  • Wiley Sons, Inc., New York 1997.
  • Dr. Andreas A. Neuber, Texas Tech University
    2004.
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