EVAL-AD7685-PMDZ [ADI]

EVAL BOARD 16BIT 250K ADC AD7685;
EVAL-AD7685-PMDZ
型号: EVAL-AD7685-PMDZ
厂家: ADI    ADI
描述:

EVAL BOARD 16BIT 250K ADC AD7685

文件: 总31页 (文件大小:2287K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
8-/10-Lead PulSAR User Guide  
UG-340  
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  
Evaluation Board for the 8-/10-Lead Family of 14-/16-/18-Bit PulSAR ADCs  
The 8-lead PulSAR evaluation board covers the following 8-lead  
PulSAR ADCs: AD7683 (16-bit), AD7684 (16-bit), and AD7694  
(16-bit).  
FEATURES  
Full featured evaluation board for 8-/10-lead PulSAR ADCs  
Versatile analog signal conditioning circuitry  
On-board reference, reference buffers, and ADC drivers  
PC software for control and data analysis of time and  
frequency domain  
These low power ADCs offer very high performance of up to  
18 bits with throughputs ranging from 100 kSPS to 1.33 MSPS.  
The evaluation board is designed to demonstrate the performance  
of the ADCs and to provide an easy to understand interface  
for a variety of system applications. A full description of these  
products is available in their respective data sheets, which  
should be consulted when using this evaluation board.  
System demonstration platform compatible (EVAL-SDP-CB1Z)  
EQUIPMENT NEEDED  
Evaluation board (see Table 5)  
Wall adapter power supply  
Additional equipment needed  
SDP board (EVAL-SDP-CB1Z) (optional)  
Precision source  
The evaluation board is ideal for use with Analog Devices, Inc.,  
system demonstration platform (SDP). This evaluation board  
interfaces to the SDP board via a 120-pin connector. SMA  
connectors, J6 and J10, are provided for the low noise analog  
signal source.  
Cable (SMA input to evaluation board)  
GENERAL DESCRIPTION  
On-board components include a high precision buffered band gap  
5.0 V reference (ADR435), a signal conditioning circuit with two  
op amps (ADA4841-1), and a power supply to derive the necessary  
voltage levels to supply all voltage needs. The 8-lead board also  
includes a level shifter (ADG3304) to interface the ADC with  
the EVAL-SDP-CB1Z.  
The 10-lead PulSAR® evaluation board covers the following  
10-lead PulSAR analog-to-digital converters (ADCs): AD7685  
(16-bit), AD7686 (16-bit), AD7687 (16-bit), AD7688 (16-bit),  
AD7690 (18-bit), AD7691 (18-bit), AD7693 (16-bit), AD7942  
(14-bit), AD7946 (14-bit), AD7980 (16-bit), AD7982 (18-bit),  
AD7983 (16-bit), AD7984 (18-bit), AD7988-5 (16-bit), AD7989-5  
(18-bit), AD7915 (16-bit) and AD7916 (16-bit).  
SIMPLIFIED EVALUATION BOARD BLOCK DIAGRAM  
VIN = 9V  
WALL ADAPTER  
(OPTIONAL)  
–V  
S
POWER SUPPLY CIRCUITRY  
ADP7102, ADP7104, ADP2301  
GND  
+V  
S
+7.5V/-2.5V 2.5V/5V +7.5V 3.3V +5V  
(OPTIONAL)  
ADR435  
5V  
VDD  
5V  
GND  
VSDP  
VCM  
AD8031  
ADSP-BF527  
DSP  
ADA4841-1  
ADA4841-1  
+7.5V  
–2.5V  
REF OVDD  
SDI  
VDD  
IN+  
VIN+  
VIN–  
SCK  
ADC  
+7.5V  
SDO  
CNV  
SPORT  
IN–  
GND  
GLUE  
LOGIC  
A
B
–2.5V  
10-LEAD PulSAR EVALUATION BOARD  
SDP BOARD  
Figure 1.  
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT  
WARNING AND LEGAL TERMS AND CONDITIONS.  
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TABLE OF CONTENTS  
Features .............................................................................................. 1  
Running the Software with the Hardware Connected .............7  
Running the Software Without Hardware .................................8  
Software Operation ...........................................................................9  
Description of User Panel ......................................................... 10  
Waveform Capture ..................................................................... 11  
AC Testing—Histogram ............................................................ 12  
DC Testing—Histogram............................................................ 13  
AC Testing—FFT Capture ........................................................ 13  
Summary Tab.............................................................................. 14  
Save File ....................................................................................... 15  
Load File ...................................................................................... 15  
Evaluation Board Schematics........................................................ 16  
Troubleshooting.............................................................................. 29  
Software ....................................................................................... 29  
Hardware ..................................................................................... 29  
Products on this Evaluation Board .............................................. 30  
Related Links............................................................................... 30  
Equipment Needed........................................................................... 1  
General Description ......................................................................... 1  
Simplified Evaluation Board Block Diagram................................ 1  
Revision History ............................................................................... 2  
Evaluation Board Kit Contents....................................................... 3  
Hardware Requirements .................................................................. 3  
Evaluation Board Hardware............................................................ 4  
Setting Up the Evaluation Board................................................ 4  
Power Supplies .............................................................................. 4  
Reference ....................................................................................... 4  
Serial Interface .............................................................................. 4  
Solder Links................................................................................... 4  
Analog Inputs................................................................................ 4  
Evaluation Board Software.............................................................. 5  
Installing the Software ................................................................. 5  
Installation Steps........................................................................... 5  
Board Operation/Connection Sequence................................... 7  
REVISION HISTORY  
3/15—Rev. B to Rev. C  
10/12—Rev. 0 to Rev. A  
Changes to General Description Section ...................................... 1  
Changes to Table 3............................................................................ 4  
Changes to Table 5.......................................................................... 30  
Added 8-Lead PulSAR Evaluation Board .......................Universal  
Changes to Description of User Panel Section........................... 10  
Changes to Figure 27 Caption ...................................................... 16  
Added Figure 28; Renumbered Sequentially .............................. 17  
Changes to Figure 36 Caption and Figure 37 Caption .............. 23  
Changes to Figure 38 Caption and Figure 39 Caption .............. 24  
Changes to Figure 40 Caption ...................................................... 25  
Added Figure 41 and Figure 42 .................................................... 26  
Added Figure 43 and Figure 44 .................................................... 27  
Added Figure 45 ............................................................................. 28  
Changes to Software Section......................................................... 29  
Changes to Table 5 and Related Links Section........................... 30  
2/14—Rev. A to Rev. B  
Changes to Equipment Needed Section and General  
Description Section.......................................................................... 1  
Changes to Evaluation Kits Contents Section .............................. 3  
Change to Table 3 ............................................................................. 4  
Changes to Table 5.......................................................................... 30  
5/12—Revision 0: Initial Version  
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EVALUATION BOARD KIT CONTENTS  
HARDWARE REQUIREMENTS  
Evaluation board for ADC of your choice  
(U1 device is specific to the evaluation board ordered)  
Business card with Analog Devices website address for  
software and documentation  
9 V wall wart (supplied)  
Standard USB A to Mini-B USB cable  
Signal source, ac source with low distortion, and dc source  
with low noise  
9 V wall wart  
Band-pass filter suitable for 16- and 18-bit testing (value  
based on signal frequency)  
SDP board for data transfer to PC  
Signal source and cables  
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EVALUATION BOARD HARDWARE  
SETTING UP THE EVALUATION BOARD  
Figure 27 shows the evaluation board schematic. The board  
consists of the ADC, U1, with a reference, U6 (ADR435), and  
ADC drivers, U12 and U14 (ADA4841-1). The 8-lead board  
also has a level shifter, U16 (ADG3304).  
Table 2. Table of Jumper Detail with Factory Default Setting  
Link Setting Function Comment  
SL2  
SL1  
SL3  
SL7  
A
A
A
A
−VS  
+VS  
V_SDP  
VDD for  
ADC  
Change to B if using bench supplies  
Change to B if using bench supplies  
Change to B if using bench supplies  
Change to B if using bench supplies  
The evaluation board is a flexible design that enables the user to  
adjust compensation components in addition to operating from  
an adjustable bench top power supply.  
SL4  
A
VREF  
Change to B if using bench supplies  
POWER SUPPLIES  
The evaluation board requires power from a wall adapter. The  
on-board power supply design is designed to operate from 9 V.  
Table 3. Table of Jumpers Specific to Different ADCs  
Link Setting Configuration Generic  
SL10  
A
Differential  
input  
AD7684, AD7687, AD7688,  
AD7690, AD7691, AD7693,  
AD7982, AD7984, AD7989-5,  
AD7915, AD7916  
Table 1. Power Supplies Provided on the Board  
Power Supply (V) Function  
Components Used  
+5  
SDP power  
Positive rail  
Negative rail  
ADC  
ADP2301  
+7.5  
−2.5  
+2.5/+5  
+3.3  
ADP7102  
SL10  
B
Single-ended  
AD7683, AD7685, AD7686,  
AD7694, AD7942, AD7946,  
AD7980, AD7983, AD7988-5  
ADP2301  
ADP7104  
VDRIVE (digital power) ADP7104  
ANALOG INPUTS  
Each supply is decoupled where it enters the board and again at  
each device. A single ground plane is used on this board to  
minimize the effect of high frequency noise interference.  
The analog inputs to the evaluation board are SMA connectors,  
J6 and J10. These inputs are buffered with dedicated amplifier  
circuitry (U12 and U14), as shown in Figure 27. The circuit allows  
different configurations, input range scaling, filtering, addition of a  
dc component, and use of different op amp and supplies. The  
analog input amplifiers are set as unity-gain buffers at the factory.  
The amplifier positive rail is driven from 7.5 V (from U13,  
ADP7102). The negative amplifier rail is driven from –VS  
(generated by U3, ADP2301).  
In addition to this, there is also the ability to power the board  
from a bench top power supply. The screw terminals, J2 and J3, are  
provided for this function. When bench power is used, the wall  
wart and on-board power supply are no longer required. Solder  
links also must be changed: SL1 = B, SL2 = B, SL7 = B, SL4 = B,  
and SL3 = B.  
The default configuration sets both U12 and U14 at midscale,  
generated from a buffered reference voltage divider (VCM).  
REFERENCE  
An external 5 V reference (U6, ADR435) is used to supply the  
ADCs directly.  
The evaluation board is factory configured for providing either  
a single-ended path or a fully differential path as shown in Table 3.  
SERIAL INTERFACE  
For dynamic performance, a fast Fourier transform (FFT) test  
can be done by applying a very low distortion ac source.  
The evaluation board uses the SPORT interface from the ADSP-  
BF527 D SP.  
For low frequency testing, the audio precision source can be used  
directly because the outputs on these are isolated. Set the outputs  
for balanced and floating ground. Different sources can be used;  
however, most are single-ended sources that use a fixed output  
resistance.  
A number of AND gates are used to clock and gate the SPORT  
transfer to the ADC device. See U9, U10, and U11. The 8-lead  
board also has a level shifter, U16 (ADG3304), which interfaces  
the ADC logic levels (5 V) to the EVAL-SDP-CB1Z (3.3 V).  
SOLDER LINKS  
Because the evaluation board uses the amplifiers in unity-gain,  
the noninverting input has a common-mode input with a series  
590 Ω resistor, and it needs to be taken into account when directly  
connecting a source (voltage divider).  
There is one three solder link option on the board. It is configured  
depending on which generic of the ADC is on the specific  
evaluation board as described in Table 3.  
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EVALUATION BOARD SOFTWARE  
INSTALLING THE SOFTWARE  
The evaluation board software can be downloaded from the  
relevant product page on the Analog Devices website.  
Install the software prior to connecting the SDP board to the USB  
port of the PC. This ensures that the SDP board is recognized  
when it connects to the PC.  
1. Start the Windows® operating system and download the  
software from the relevant product page on the Analog  
Devices website.  
2. Unzip the downloaded file. Run the setup.exe file.  
3. After installation is completed, power up the evaluation  
board as described in the Power Supplies section.  
4. Plug the evaluation board into the SDP board and the SDP  
board into the PC using a USB cable.  
Figure 3. Choose Folder Location, Default Folder Shown  
5. When the software detects the evaluation board, proceed  
through any dialog boxes that appear to finalize the  
installation.  
The default location for the software is the following:  
C:\Program Files\Analog Devices\8 & 10 Lead PulSAR ADCs.  
This location contains the executable software and example files.  
INSTALLATION STEPS  
Proceed through the installation, allowing the software and  
drivers to be placed in the appropriate locations. Connect the  
SDP board to the PC only after the software and drivers have  
been installed.  
There are two parts to the software installation. First, install the  
software related to the evaluation board, as shown in Figure 2 to  
Figure 7.  
Figure 4. Accept National Instruments Software License Agreement  
Figure 5. Click Next >> to Install Software  
Figure 2. Evaluation Board Software Installation Launches  
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Figure 6. Bar Showing Installation Progress  
Figure 9. Click Next > to Install the ADI SDP Drivers  
Figure 10. Choose Install Location, Default Folder Shown  
Figure 11. Installation in Progress  
Figure 7. Installation Complete, Click Next >> to Complete and Finish  
The second part of the software installation is the drivers related to  
the SDP board. These drivers must be installed for the evaluation  
board to function correctly. See Figure 8 to Figure 12.  
Figure 8. Installation for SDP Starting  
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RUNNING THE SOFTWARE WITH THE HARDWARE  
CONNECTED  
To run the program, take the following steps:  
1. Click Start > All Programs > Analog Devices > 8 & 10  
Lead PulSAR ADCs. To uninstall the program, click Start  
> Control Panel > Add or Remove Programs > Analog  
Devices 8 & 10 Lead PulSAR ADCs.  
2. If the SDP board is not connected to the USB port when  
the software is launched, a connectivity error displays (see  
Figure 14). Connect the evaluation board to the USB port of  
the PC, wait a few seconds, click Rescan, and follow the  
instructions.  
Figure 12. Click Finish to Complete Installation  
When you first plug in the SDP board via the USB cable provided,  
allow the new Found Hardware Wizard to run. You can check  
that the drivers and the board are connected correctly by looking at  
the Device Manager of the PC. The Analog Devices System  
Development Platform (32MB) should appear under ADI  
Development Tools.  
Figure 14. SDP Board Not Connected to the USB Port Pop-Up Window Error  
3. When evaluation board is detected, Figure 15 displays.  
Click OK to continue.  
Figure 13. Device Manager  
BOARD OPERATION/CONNECTION SEQUENCE  
The following is the board operation/connection sequence:  
1. Connect the SDP controller board to the evaluation board  
with the J5 connector (screw into place as required). The  
software is configured to find the evaluation board on either  
connector of the SDP board.  
Figure 15. Software Detects Evaluation Board  
4. The software then connects to the board and displays what  
is shown in Figure 16.  
2. Power the board with the appropriate supply as described  
in the Power Supplies section.  
3. Connect to the PC with the USB cable.  
4. Launch the software. Click Start > All Programs >  
Analog Devices > 8 & 10 Lead PulSAR ADCs.  
5. Apply signal source and capture data.  
Figure 16. Software Connects to SDP Board  
5. When the board is correctly detected, the software panel  
opens.  
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3. The software alerts you that no hardware is connected, and  
that the software will continue in standalone mode.  
RUNNING THE SOFTWARE WITHOUT HARDWARE  
The software can run in standalone mode when no evaluation  
board hardware is connected to the USB port.  
1. Click Start > All Programs > Analog Devices > 8 & 10  
Lead PulSAR ADCs.  
2. The software automatically seeks to find the hardware  
connected; therefore, when no hardware is connected, it  
displays a connectivity error (see Figure 17). To continue  
without hardware in standalone mode, click Cancel.  
Figure 18. Software Indicates Operating in Standalone Mode  
4. Within standalone/offline mode, you can load example  
files or previously saved files and analyze these files.  
5. If you decide to connect hardware at this point, close the  
software and relaunch it to allow the software to search for  
the board again.  
Figure 17. No Hardware Connected Pop-Up Window Error  
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SOFTWARE OPERATION  
When the software launches, the panel opens and the software  
looks for the hardware connected to the PC. The software  
detects the generic attached to the PC (see Figure 19). The  
product panel then launches.  
Figure 19. Software Detects AD7691  
2
1
6
10  
7
8
9
3
4
5
Figure 20. Setup Screen  
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DESCRIPTION OF USER PANEL  
The following is the description of the user panel:  
1. File menu with choice of  
a. Load Data: load previously captured data  
b. Save Data as .tsv: save captured data in tsv (tab  
separated values) format for future analysis  
c. Save Picture: use to save the current screen capture  
d. Print  
e. Exit  
Figure 21. Software Overwritten User Settings to a Sample Rate/SCLK Rate  
Suitable for SDP Data Transfer  
5. External Reference Voltage. By default, this reference is 5 V  
(ADR435 on-board reference). The minimum/maximum  
voltage calculations are based on this reference voltage. If  
the user changes the reference voltage, this input must be  
changed accordingly.  
6. Click Read to perform a single capture.  
7. Click Start Stream to perform a continuous capture from  
the ADC.  
8. Click Stop Stream to stop streaming data.  
9. Select the number of samples (Num Samples) to analyze.  
10. There are four tabs available that display the data in  
different formats:  
2. When hardware is connected to the USB port, the software  
automatically detects which generic is connected and displays  
it here. Without hardware, the software can be operated in  
standalone mode for data analysis, and the device information  
notes the device number pulled from the saved data file.  
3. Sampling Frequency: The default sampling frequency  
matches the maximum sample rate of the ADC connected  
to the board. The user can adjust the sampling frequency;  
however, there are limitations around the sample frequency  
related to the SCLK frequency applied. The sample frequency  
must be an integer divider of the SCLK frequency. In addition,  
where unusable sample frequencies are input, the software  
automatically adjusts the sample frequency accordingly.  
Units can be entered, such as 10k for 10,000 Hz. Because  
the maximum sample frequency possible is device dependent,  
with some of the ADCs capable of operating up to 250 kSPS,  
while others can go to 1.3 MSPS, the software matches the  
particular ADC ability. If the user enters a value larger than  
the ability of the existing device, the software indicates this  
and reverts to the maximum sample frequency.  
a. Waveform  
b. Histogram  
c. FFT  
d. Summary  
To exit the software, go to File > Exit or use the EXIT button in  
the bottom left corner.  
Within any of the chart panels, the tools shown in Table 4 allow  
user control of the different chart displays.  
4. sCLK Frequency: The default SCLK frequency is set to  
60 MHz, which is the maximum allowable from the SDP.  
The SCLK is applied to the ADC SCK pin. The SDP board  
limits the SCLK frequency; nominal values for correct  
operation are 60 MHz, 30 MHz, and 20 MHz. Where the  
user adjusts the SCLK/sample rate to values that are not  
supported by the SDP clock or the ADC sample rate, the  
software overrides by adjusting values accordingly and  
identify this to the user (see Figure 21). The SCLK frequency  
is rounded down.  
Table 4.  
Symbol  
Description  
This tool is used to control the cursor, if present.  
This tool is used to zoom in and out.  
This tool is used for panning.  
To save the plot, click Save Plot.  
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WAVEFORM CAPTURE  
Figure 22 illustrates the waveform capture. The input signal is a 1 kHz sine wave. The waveform analysis reports the amplitudes recorded  
from the captured signal in addition to the frequency of the signal tone.  
1
Figure 22. Waveform Tab  
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Note that an ac histogram needs a quality signal source applied  
to the input J6/J10 connectors. Figure 23 shows the histogram  
for a 1 kHz sine wave applied to the ADC input.  
AC TESTING—HISTOGRAM  
The ac testing histogram tests the ADC for the code distribution  
for the ac input, computes the mean and standard deviation, or  
transition noise, of the converter, and displays the results. Raw data  
is captured and passed to the PC for statistical computations. To  
perform a histogram test, select Histogram and click Start Stream.  
Figure 23 shows the histogram results for the signal applied. It  
also illustrates the different measured values for the data captured  
(see Number 1 within Figure 23).  
1
Figure 23. Histogram Tab, Histogram Captured for Sine Wave  
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and spurious-free dynamic range (SFDR). The data can also  
DC TESTING—HISTOGRAM  
be displayed in the time domain. To perform an ac test, apply  
a sinusoidal signal to the evaluation board at the SMA inputs,  
J6/J10. Low distortion, better than 100 dB, is required to allow  
true evaluation of the device. One possibility is to filter the input  
signal from the ac source. A band-pass filter can be used, and  
its center frequency must match the test frequency of interest.  
Furthermore, if using a low frequency band-pass filter when  
the full-scale input range is more than a few V p-p, use the on-  
board amplifiers to amplify the signal, thus preventing the filter  
from distorting the input signal.  
More commonly, the histogram is used for dc testing where the  
user tests the ADC for the code distribution for dc input, computes  
the mean and standard deviation, or transition noise, of the  
converter, and displays the results. Raw data is captured and  
passed to the PC for statistical computations. To perform a  
histogram test, select Histogram and click Start Stream. Note  
that a histogram test can be performed without an external  
source because the evaluation board has a buffered VREF/2  
source at the ADC input. To test other dc values, apply a source  
to the J6/J10 inputs. It may be required to filter the signal to  
make the dc source noise compatible with that of the ADC.  
Figure 24 displays the histogram of the captured data that includes  
the following:  
AC TESTING—FFT CAPTURE  
The spectrum information  
The fundamental frequency and amplitude in addition to  
the second-to-fifth harmonics  
This tests the traditional ac characteristics of the converter and  
displays an FFT of the result. As in the histogram test, raw data  
is captured and passed to the PC where the FFT is performed  
displaying signal-to-noise ratio (SNR), signal-to-noise-and-  
distortion ratio (SINAD), total harmonic distortion (THD),  
The performance data (SNR, dynamic range, THD,  
SINAD, and noise performance)  
2
3
1
Figure 24. FFT Tab  
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SUMMARY TAB  
The Summary tab captures all the display information and provides them in one panel with a synopsis of the information including key  
performance parameters, such as SNR and THD.  
Figure 25. Summary Tab, Shows All Captured Windows  
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SAVE FILE  
LOAD FILE  
The software can save the current captured data for later analysis,  
and the file format is .tsv (tab separated values).  
The user is prompted with a Load File box. The user may have to  
navigate to find these example files. The default location for the  
example files is C:\Program Files\Analog Devices\8 & 10 Lead  
PulSAR ADCs\Example files.  
The user is prompted with a Choose or Enter Path of File box  
(see Figure 26); save to an appropriate folder location.  
Figure 26. Save Dialog Box  
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EVALUATION BOARD SCHEMATICS  
Figure 27. 10-Lead Evaluation Board, ADC and Driver  
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2 2 8  
1
Figure 28. 8-Lead Evaluation Board, ADC and Driver  
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Figure 29. Voltage Reference and Common-Mode Buffer  
Figure 30. Secondary Power Connector for Bench Supply Purposes  
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Figure 31. On-Board Amplifier Power Supply, +7.5/−2.5 V  
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Figure 32. SDP Power Supply  
Figure 33. ADC/VDRIVE Power Supply  
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Figure 34. SDP Connector and Glue Logic  
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Figure 35. Header Connectors, Optional Connectors for Possible Add-On Boards  
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Figure 36. 10-Lead Evaluation Board Silkscreen, Top Layer  
Figure 37. 10-Lead Evaluation Board, Layer 1  
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Figure 38. 10-Lead Evaluation Board, Layer 2  
Figure 39. 10-Lead Evaluation Board, Layer 3  
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Figure 40. 10-Lead Evaluation Board, Layer 4  
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Figure 41. 8-Lead Evaluation Board Silkscreen, Top Layer  
Figure 42. 8-Lead Evaluation Board, Layer 1  
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Figure 43. 8-Lead Evaluation Board, Layer 2  
Figure 44. 8-Lead Evaluation Board, Layer 3  
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Figure 45. 8-Lead Evaluation Board, Layer 4  
Rev. C | Page 28 of 31  
8-/10-Lead PulSAR User Guide  
TROUBLESHOOTING  
UG-340  
HARDWARE  
SOFTWARE  
To troubleshoot the hardware, take the following steps:  
To troubleshoot the software, take the following steps:  
1. If the software does not read any data back, do the  
following:  
1. Always install the software prior to connecting the hardware  
to the PC.  
a. Check that the power is applied within the power  
ranges described in the Power Supplies section.  
b. Using a voltmeter, measure the voltage present at the  
positive terminal of C3 (it should be 7.5 V) and C14  
(it should be −2.5 V) and measure the voltage at the  
positive terminal of C11 (it should be 5 V). The SDP  
board, LED1, should be lit.  
2. Always allow the install to fully complete (the software is a  
2-part install, the ADC software and the SDP drivers). This  
may require a restart.  
3. When the user first plugs in the SDP board via the USB cable  
provided, allow the new Found Hardware Wizard to run.  
This may take a little time but allow this to happen prior to  
starting the software.  
4. Where the board does not appear to be functioning, ensure  
that the ADC evaluation board is connected to the SDP board  
and that the board is being recognized in the Device  
Manager, as shown in Figure 13.  
5. If connected to a slower USB port where the SDP cannot read  
as quickly as it needs to, a timeout error may result. In this  
case, it is advised not to read continuously, or alternatively,  
to lower the number of samples taken.  
c. Launch the software and read the data. If nothing  
happens, exit the software.  
d. Power down the board and relaunch the software.  
e. If no data is read back, confirm that the ADC evaluation  
board is connected to the SDP board and that the board  
is being recognized in the Device Manager, as shown  
in Figure 13.  
2. When the user is working with the software in standalone/  
offline mode (no hardware connected) and later chooses to  
connect hardware, they must close and relaunch the software.  
Rev. C | Page 29 of 31  
 
 
 
UG-340  
8-/10-Lead PulSAR User Guide  
PRODUCTS ON THIS EVALUATION BOARD  
Table 5.  
Product  
Ordering Model  
EVAL-AD7683SDZ  
EVAL-AD7684SDZ  
EVAL-AD7685SDZ  
EVAL-AD7686SDZ  
EVAL-AD7687SDZ  
EVAL-AD7688SDZ  
EVAL-AD7690SDZ  
EVAL-AD7691SDZ  
EVAL-AD7693SDZ  
EVAL-AD7694SDZ  
EVAL-AD7942SDZ  
EVAL-AD7946SDZ  
EVAL-AD7980SDZ  
EVAL-AD7982SDZ  
EVAL-AD7983SDZ  
EVAL-AD7984SDZ  
EVAL-AD7988-5SDZ  
EVAL-AD7915SDZ  
EVAL-AD7916SDZ  
Sample Rate  
100 kSPS  
100 kSPS  
250 kSPS  
500 kSPS  
250 kSPS  
500 kSPS  
400 kSPS  
250 kSPS  
500 kSPS  
250 kSPS  
250 kSPS  
500 kSPS  
1 MSPS  
Resolution (Bit)  
Package Used on Evaluation Board  
8-Lead MSOP  
8-Lead MSOP  
AD7683BRMZ  
AD7684BRMZ  
AD7685BRMZ  
AD7686BRMZ  
AD7687BRMZ  
AD7688BRMZ  
AD7690BRMZ  
AD7691BRMZ  
AD7693BRMZ  
AD7694BRMZ  
AD7942BRMZ  
AD7946BRMZ  
AD7980BRMZ  
AD7982BRMZ  
AD7983BRMZ  
AD7984BRMZ  
AD7988-5BRMZ  
AD7915BRMZ  
AD7916BRMZ  
16  
16  
16  
16  
16  
16  
18  
18  
16  
16  
14  
14  
16  
18  
16  
18  
16  
16  
16  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
8-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
10-Lead MSOP  
1 MSPS  
1.33 MSPS  
1.33 MSPS  
500 kSPS  
1 MSPS  
500 kSPS  
RELATED LINKS  
Resource  
AD8031  
ADA4841-1  
ADR435  
Description  
Product Page, AD8031, 2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Single Amplifier  
Product Page, ADA4841-1, Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier  
Product Page, ADR435, Ultralow Noise XFET® Voltage References with Current Sink and Source Capability  
Product Page, ADP7102, 20 V, 300 mA, Low Noise, CMOS LDO  
ADP7102  
ADP7104  
Product Page, ADP7104, 20 V, 500 mA, Low Noise, CMOS LDO  
ADP2301  
ADG3304  
EVAL-SDP-CB1Z  
AN-931  
Product Page, ADP2301, 1.2 A, 20 V, 1.4 MHz Nonsynchronous Step-Down Switching Regulator  
Product Page, ADG3304, Low Voltage 1.15 V to 5.5 V, 4 Channel, Bidirectional, Logic Level Translator  
Product Page, System Demonstration Platform (SDP)  
AN-931 Application Note, Understanding PulSAR ADC Support Circuitry  
Rev. C | Page 30 of 31  
 
 
 
8-/10-Lead PulSAR User Guide  
NOTES  
UG-340  
ESD Caution  
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection  
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.  
Legal Terms and Conditions  
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. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.  
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,  
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided  
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional  
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term  
“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including  
ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may  
not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to  
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any  
occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.  
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice  
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO  
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED  
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL  
PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF  
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE  
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable  
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of  
Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby  
submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.  
©2012–2015 Analog Devices, Inc. All rights reserved. Trademarks and  
registered trademarks are the property of their respective owners.  
UG10322-0-3/15(C)  
Rev. C | Page 31 of 31  

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