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| university:courses:electronics:electronics-lab-adc [24 Sep 2019 13:19] – [Procedure] Pop Andreea | university:courses:electronics:electronics-lab-adc [03 Jan 2021 22:21] (current) – fix links Robin Getz |
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| ==== Background ==== | ==== Background ==== |
| The [[https://www.analog.com/media/en/technical-documentation/data-sheets/AD7910_7920.pdf|AD7920]] is a 12-bit high speed, low power, succesive approximation ADC. It can operate with a single power supply in range 2.35V to 5.25V. | The [[adi>media/en/technical-documentation/data-sheets/AD7910_7920.pdf|AD7920]] is a 12-bit high speed, low power, succesive approximation ADC. It can operate with a single power supply in range 2.35V to 5.25V. |
| This ADC can be serial interfaced. The serial clock provides the conversion clock and also controls the | This ADC can be serial interfaced. The serial clock provides the conversion clock and also controls the |
| transfer of information from the AD7920 during conversion. | transfer of information from the AD7920 during conversion. |
| ==== Procedure ==== | ==== Procedure ==== |
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| Open Scopy. A Scopy initialization file is included to aid in setup,[[https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/blob/master/m2k/other_resources/dual_slope_adc/Dual_slope_scopy_setup.ini|Dual_slope_scopy_setup.ini]] | Open Scopy. A Scopy initialization file is included to aid in setup,[[downgit>education_tools/blob/master/m2k/other_resources/dual_slope_adc/Dual_slope_scopy_setup.ini|Dual_slope_scopy_setup.ini]] |
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| Power Supply: Tracking enabled, set to +/-5V | Power Supply: Tracking enabled, set to +/-5V |
| Digitial IO: DIO2 set to OUT, set to 1 | Digitial IO: DIO2 set to OUT, set to 1 |
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| Pattern Generator: Group DIO0, DIO1, Pattern: Import (load file [[https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/blob/master/m2k/other_resources/dual_slope_adc/dual_slope_pattern.csv|dual_slope_pattern.csv]] ) Frequency set to 5Hz. | Pattern Generator: Group DIO0, DIO1, Pattern: Import (load file [[downgit>education_tools/blob/master/m2k/other_resources/dual_slope_adc/dual_slope_pattern.csv|dual_slope_pattern.csv]] ) Frequency set to 5Hz. |
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| Signal Generator: Channel 1 initally set to constant +2.5V | Signal Generator: Channel 1 initally set to constant +2.5V |
| <WRAP round download> | <WRAP round download> |
| **Lab Resources:** | **Lab Resources:** |
| * Fritzing files: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/tree/master/m2k/fritzing/adc_lab_bb | adc_lab_bb]] | * Fritzing files: [[downgit>education_tools/tree/master/m2k/fritzing/adc_lab_bb | adc_lab_bb]] |
| * LTSpice files: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/tree/master/m2k/ltspice/adc_ltspice | adc_ltspice]] | * LTSpice files: [[downgit>education_tools/tree/master/m2k/ltspice/adc_ltspice | adc_ltspice]] |
| * JavaScript files: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/education_tools/tree/master/m2k/javascript/sar_adc_script | sar_adc_script]] | * JavaScript files: [[downgit>education_tools/tree/master/m2k/javascript/sar_adc_script | sar_adc_script]] |
| </WRAP> | </WRAP> |
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| Some additional resources: | Some additional resources: |
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| * [[http://www.analog.com/media/en/technical-documentation/dsp-book/dsp_book_Ch3.pdf|ADC and DAC]] | * [[adi>media/en/technical-documentation/dsp-book/dsp_book_Ch3.pdf|ADC and DAC]] |
| * [[http://www.analog.com/en/products/analog-to-digital-converters/integrated-special-purpose-converters/voltage-to-frequency-converters/ad654.html|AD654 Voltage-to-Frequency Converter]] | * [[adi>en/products/analog-to-digital-converters/integrated-special-purpose-converters/voltage-to-frequency-converters/ad654.html|AD654 Voltage-to-Frequency Converter]] |
| * [[http://www.analog.com/en/technical-articles/exploring-different-sar-adc-analog-input-architectures.html|Exploring Different SAR ADC Analog Input Architectures]] | * [[adi>en/technical-articles/exploring-different-sar-adc-analog-input-architectures.html|Exploring Different SAR ADC Analog Input Architectures]] |
| * [[http://www.analog.com/en/technical-articles/rf-sampling-adc-offer-advantages-in-systems-design.html|RF Sampling ADCs Offer Advantages in Systems Design]] | * [[adi>en/technical-articles/rf-sampling-adc-offer-advantages-in-systems-design.html|RF Sampling ADCs Offer Advantages in Systems Design]] |
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| **Return to Lab Activity [[university:courses:electronics:labs|Table of Contents]]** | **Return to Lab Activity [[university:courses:electronics:labs|Table of Contents]]** |
