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One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the
FEATURES
Full featured evaluation board for the
Versatile analog signal conditioning circuitry
On-board reference, reference buffers, and ADC drivers
System demonstration board compatible (EVAL-SDP-CB1Z)
PC software for control and data analysis of time and
frequency domain
EVALUATION KIT CONTENTS
EVAL-AD7903SDZ
evaluation board
Wall power supply 9 V dc adapter
Daughter card power connector
SIGNAL SOURCE
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
AD7903
Dual Differential, 16-Bit, 1 MSPS PulSAR ADC
AD7903
SMA
CONNECTOR
Figure 1. Typical Setup for the
(EVAL-AD7903SDZ
EVAL-AD7903SDZ User Guide
ADDITIONAL EQUIPMENT/SOFTWARE NEEDED
System demonstration platform (EVAL-SDP-CB1Z)
Precision analog signal source
Power supply, +7 V/−2.5 V (optional)
USB cable
SMA cable
PC running Windows XP SP2, Windows Vista, Windows 7, or
higher with USB 2.0 port
Evaluation software for the
AD7903
product page)
ONLINE RESOURCES
Documents Needed
AD7903
data sheet
EVAL-AD7903SDZ
Required Software
EVAL-AD7903SDZ
FAQs
and
Troubleshooting
TYPICAL SETUP
EVAL-AD7903SDZ
on Left and
EVAL-SDP-CB1Z
on Right)
Rev. 0 | Page 1 of 32
AD7903
(download from
user guide
evaluation software
PC
UG-609
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Table of Contents
Related Manuals for Analog Devices EVAL-AD7903SDZ
Summary of Contents for Analog Devices EVAL-AD7903SDZ
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Page 1: Features
EVAL-AD7903SDZ User Guide UG-609 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluating the AD7903 Dual Differential, 16-Bit, 1 MSPS PulSAR ADC FEATURES ADDITIONAL EQUIPMENT/SOFTWARE NEEDED Full featured evaluation board for the... -
Page 2: Table Of Contents
Power Supplies ................8 Evaluation Board Schematics and Artwork ........ 20 Link Configuration Options ............10 EVAL-AD7903SDZ Schematics ..........20 Evaluation Board Circuitry ............11 EVAL-AD7903SDZ Layout ............25 Analog Inputs ................11 ... -
Page 3: General Description
ADR435: high precision, buffered band gap 5.0 V reference AD8031: reference buffer The evaluation board is ideal for use with the Analog Devices, Inc., ADA4841-1: signal conditioning circuit with op amps system demonstration platform (SDP) board, EVAL-SDP-CB1Z. ADP7104... -
Page 4: Getting Started
Next. (The default location is C:\Program Files (x86)\ The evaluation board software can be downloaded from the Analog Devices\AD7902_03 Evaluation Software\. AD7903 product page on the Analog Devices website, at This location also contains the executable software and www.analog.com. example files.) There are two parts to the installation: •... - Page 5 EVAL-AD7903SDZ User Guide UG-609 A summary of the installation is displayed. Click Next to The dialog box informs you when the installation is continue. complete. Click Next. Figure 7. AD7903 Evaluation Board Software Installation: Figure 5. AD7903 Evaluation Board Software Installation:...
- Page 6 UG-609 EVAL-AD7903SDZ User Guide Select the location to install the drivers, and then click Install. To complete the drivers installation, click Finish, which closes the installation wizard. Figure 10. EVAL-SDP-CB1Z Drivers Setup: Selecting the Location for Drivers Installation Figure 13.
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Page 7: Evaluation Board Setup Procedures
EVAL-AD7903SDZ board to Connector J4 on the EVAL-SDP-CB1Z board. Nylon screws are included in the Under ADI Development Tools, Analog Devices System Development Platform SDP-B should appear EVAL-AD7903SDZ evaluation kit and can be used to ensure that the... -
Page 8: Evaluation Board Hardware
UG-609 EVAL-AD7903SDZ User Guide EVALUATION BOARD HARDWARE DEVICE DESCRIPTION Each on-board power supply is decoupled where it enters the board as well as where it connects to each device. A single ground AD7903 is a 16-bit, 1 MSPS, precision, power efficient, dual... - Page 9 EVAL-AD7903SDZ User Guide UG-609 = 9V WALL ADAPTER (OPTIONAL) –V POWER SUPPLY CIRCUITRY ADP7104, ADP2301 +7.5V/–2.5V 2.5V +7.5V 3.3V +5V (OPTIONAL) ADR435 VSDP AD8031 ADSP-BF527 +7.5V ADA4841-1 VDD1 REF1 VIO1 VIN1+ SDI1 IN1+ –2.5V SCK1 ADC1 +7.5V SDO1 IN1– ADA4841-1 CNV1 VIN1–...
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Page 10: Link Configuration Options
UG-609 EVAL-AD7903SDZ User Guide LINK CONFIGURATION OPTIONS Care should be taken before applying power and signals to the When operating in SDP controlled mode, ensure that VIO is evaluation board to ensure that all link positions are as required 3.3 V. Operating with a VIO greater than 3.3 V in SDP controlled by the operating mode. -
Page 11: Evaluation Board Circuitry
EVAL-AD7903SDZ User Guide UG-609 EVALUATION BOARD CIRCUITRY a balanced and floating ground. Different sources can be used; ANALOG INPUTS however, most are single-ended sources that use a fixed output The analog inputs to the evaluation board are SMA Connectors J6, resistance. -
Page 12: Modes Of Operation
UG-609 EVAL-AD7903SDZ User Guide MODES OF OPERATION STANDALONE MODE SDP CONTROLLED MODE EVAL-AD7903SDZ can also be used without the EVAL-SDP- AD7903 uses a high speed serial interface that allows sampling CB1Z controller board. In this case, the EVAL-AD7903SDZ rates of up to 1 MSPS. For more information about the operation of... -
Page 13: How To Use The Software
EVAL-AD7903SDZ User Guide UG-609 HOW TO USE THE SOFTWARE After finding the evaluation board, the software connects SETTING UP THE SYSTEM FOR DATA CAPTURE: to the board and displays the dialog box shown in Figure 18. BOARD OPERATION/CONNECTION SEQUENCE With the evaluation software installed, the following board... - Page 14 UG-609 EVAL-AD7903SDZ User Guide You can then load example files or previously saved files and If you decide to connect hardware at this point, you must analyze data. The main window of the software appears (see close the software and relaunch it to allow it to search for Figure 21), showing the evaluation board connected as the the board again.
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Page 15: Overview Of The Main Window
EVAL-AD7903SDZ User Guide UG-609 OVERVIEW OF THE MAIN WINDOW sample frequency must be an integer divider of the SCLK frequency. If an unusable sample frequency is input, the software The main window of the software is shown in Figure 21 and has automatically adjusts the sample frequency accordingly. -
Page 16: Generating A Waveform Analysis Report
UG-609 EVAL-AD7903SDZ User Guide GENERATING A WAVEFORM ANALYSIS REPORT The Waveform Analysis area (located toward the bottom of the window) reports the amplitudes recorded from the captured signal Figure 22 illustrates the Waveform tab for a 10 kHz sine wave and the frequency of the signal tone. -
Page 17: Generating A Histogram Of The Adc Code Distribution
EVAL-AD7903SDZ User Guide UG-609 GENERATING A HISTOGRAM OF THE ADC CODE DC Input DISTRIBUTION A histogram test of dc input can be performed with or without an external source because the evaluation board has a buffered The Histogram tab can be used to perform ac testing or, more /2 source at the ADC input. -
Page 18: Generating A Fast Fourier Transform Of Ac Characteristics
UG-609 EVAL-AD7903SDZ User Guide GENERATING A FAST FOURIER TRANSFORM Click the FFT tab from the main window. Click Sample. OF AC CHARACTERISTICS Figure 24 shows the FFT tab. This feature tests the traditional As in the histogram test, raw data is then captured and passed... -
Page 19: Generating A Summary Of The Waveform, Histogram, And Fast Fourier Transform
EVAL-AD7903SDZ User Guide UG-609 GENERATING A SUMMARY OF THE WAVEFORM, HISTOGRAM, AND FAST FOURIER TRANSFORM Figure 25 shows the Summary tab. The Summary tab captures all the display information and provides it in one panel with a synopsis of the information, including key performance parameters such as SNR and THD. -
Page 20: Evaluation Board Schematics And Artwork
UG-609 EVAL-AD7903SDZ User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK EVAL-AD7903SDZ SCHEMATICS Figure 26. Schematic, Page 1 Figure 27. Schematic, Page 2 Rev. 0 | Page 20 of 32... - Page 21 EVAL-AD7903SDZ User Guide UG-609 Figure 28. Schematic, Page 3 Rev. 0 | Page 21 of 32...
- Page 22 UG-609 EVAL-AD7903SDZ User Guide Figure 29. Schematic, Page 4 Rev. 0 | Page 22 of 32...
- Page 23 EVAL-AD7903SDZ User Guide UG-609 Figure 30. Schematic, Page 5 Rev. 0 | Page 23 of 32...
- Page 24 UG-609 EVAL-AD7903SDZ User Guide Figure 31. Schematic, Page 6 Rev. 0 | Page 24 of 32...
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Page 25: Eval-Ad7903Sdz Layout
EVAL-AD7903SDZ User Guide UG-609 EVAL-AD7903SDZ LAYOUT capacitors, typically 10 µF and 100 nF, placed close to the Layout Considerations DUT (U1) and connected using short, wide traces to provide When laying out the printed circuit board (PCB) for the AD7903,... - Page 26 UG-609 EVAL-AD7903SDZ User Guide Figure 33. EVAL-AD7903SDZ Evaluation Board—Top Layer Figure 34. EVAL-AD7903SDZ Evaluation Board Layer 2—Ground Rev. 0 | Page 26 of 32...
- Page 27 EVAL-AD7903SDZ User Guide UG-609 Figure 35. EVAL-AD7903SDZ Evaluation Board Layer 3—Power Figure 36. EVAL-AD7903SDZ Evaluation Board Bottom Layer Rev. 0 | Page 27 of 32...
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Page 28: Bill Of Materials
UG-609 EVAL-AD7903SDZ User Guide BILL OF MATERIALS Table 4. EVAL-AD7903SDZ Bill of Materials Reference Designator Part Description Manufacturer Part Number Stock Code Dual differential 16-bit, 1 MSPS PulSAR® ADC Analog Devices AD7903 AD7903 1.2 A, 20 V, 1.4 MHz nonsynchronous step-... - Page 29 EVAL-AD7903SDZ User Guide UG-609 Reference Designator Part Description Manufacturer Part Number Stock Code C24, C29, C32, C36, Capacitor ceramic, 50 V, C0G/NP0, 0603 C1608C0G1H272J Do not place C38, C39, C43, C46, C47, C49, C55, C60, C61, C62, C63, C68, C69, C70, C71, C72, C73, C76, C81 Resistor, thick film, 2.4 kΩ, 0603, 100 mW, 1%...
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Page 30: Related Links
UG-609 EVAL-AD7903SDZ User Guide RELATED LINKS Resource Description AD7903 Product Page: Dual Differential 16-Bit, 1 MSPS PulSAR ADC ADA4841-1 Product Page: Unity Gain Stable, Low Noise and Distortion, Rail-to-Rail Output Amplifier AD8031 Product Page: 2.7 V, 800 μA, 80 MHz Rail-to-Rail I/O Amplifiers... - Page 31 EVAL-AD7903SDZ User Guide UG-609 NOTES Rev. 0 | Page 31 of 32...
- Page 32 By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement.
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