Analog Devices EVAL-AD7928SDZ User manual

EVAL-AD7928SDZ User Guide
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, .S.A. • Tel: [phone] • Fax: [phone] • www.analog.com
Evaluating the AD7606 16-Bit simultaneous sampling, 8-Channel, SAR ADC
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS. Rev. PR.A| Page 1 of 13
FEAT RES
Full featured evaluation board for the AD7606
On-board power supplies
Standalone capability
System demonstration platform (SDP) compatible
(EVAL-SDP-CB1Z)
PC software for control and data analysis (download from
AD7606 product page)
EVAL ATION KIT CONTENTS
EVAL-AD7606SDZ evaluation board
Evaluation software CD for the AD7606
Mains power supply adapter
Screw/nut kit
ADDITIONAL EQ IPMENT NEEDED
EVAL-SDP-CB1Z system demonstration platform
PC running Windows Vista or Windows 7 with SB 2.0 port
Signal source
SMB cables
SB cable
ONLINE RESO RCES
Documents Needed
AD7606 data sheet
EVAL-AD7606SDZ user guide
Required Software
AD7606 evaluation software
Design and Integration Files
Schematics, layout files, bill of materials
EVAL ATION BOARD DESCRIPTION
The EVAL-AD7606SDZ is a full featured evaluation board that
allows the user to easily evaluate all the features of the AD7606
analog-to-digital onverter (ADC). The evaluation board an be
ontrolled by the EVAL-SDP-CB1Z SDP board via a 120-way
SDP onne tor (J102). The SDP board allows the evaluation
board to be ontrolled through the USB port of a PC using the
AD7606 evaluation software, whi h is available for download
from the produ t page or from the installer CD in luded in the
evaluation board kit.
On-board omponents in lude the following:
•ADP7104ARDZ-5.0: 5 V, low noise LDO
•ADR421: high pre ision, band gap voltage referen e
TYPICAL SET P
Figure 1.

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TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Kit Contents ................................................................... 1
Additional Equipment Needed ....................................................... 1
Online Resour es .............................................................................. 1
Evaluation Board Des ription......................................................... 1
Typi al Setup ..................................................................................... 1
Revision History ............................................................................... 2
Qui k Start Guide ............................................................................. 3
Evaluation Board Hardware ............................................................ 4
Devi e Des ription ....................................................................... 4
Hardware Link Options ............................................................... 4
Power Supplies ...............................................................................4
So kets/Conne tors ......................................................................6
Evaluation Board Software ...............................................................7
Software Installation .....................................................................7
Software Operation .................................................................... 10
Using the Software.......................................................................... 11
Configuration Tab ...................................................................... 11
Data Capture Tab........................................................................ 11
Taking Samples ........................................................................... 11
REVISION HISTORY
1/15—Revision Pr.A: Initial Version

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QUICK START GUIDE
Follow these steps to qui kly evaluate the AD7606 ADC. For
detailed instru tions, see the subsequent se tions.
1. Install the evaluation software from the AD7606 produ t page
or from the in luded CD. Ensure that the EVAL-SDP-CB1Z
SDP board is dis onne ted from the USB port of the PC
while installing the software. (The PC may need to be
restarted after the installation.)
2. Ensure that the various link options are onfigured as
outlined in Table 2.
3. Conne t the EVAL-SDP-CB1Z SDP board to the
evaluation board as shown in Figure 2. S rew the two
boards together using the en losed nylon s rew/nut set to
ensure that the boards onne t firmly together.
4. Conne t a 5V power supply to J1 and ensure LK1 is in
position A.
5. Conne t the EVAL-SDP-CB1Z SDP board to the PC via
the USB able. Choose to automati ally sear h for the
drivers for the SDP board if prompted by the operating
system.
6. Laun h the evaluation software from the Analog Devices
subfolder in the Programs menu.
7. Conne t an input signal via V1-8.
Figure 2. Evaluation Board (Left) Connected to the SDP Board (Right)

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EVALUATION BOARD ARDWARE
DEVICE DESCRIPTION
The AD7606 ADC is a 16-bit, , 8- hannel, simultaneous
sampling su essive approximation ADC. The devi e operates
from a single 2.7 V to 5.25 V power supply and features
throughput rates of up to 200 KSPS. The devi e has onboard
1MΩ input buffers meaning dire t onne tion from sensor to
ADC.
Full data on the AD7606 is available in the AD7606 data sheet,
whi h should be onsulted in onjun tion with this user guide
when using the evaluation board. Full details on the EVAL-
SDP-CB1Z are available at the SDP board produ t page.
HARDWARE LINK OPTIONS
The fun tions of the link options are des ribed in Table 2. The
default setup is onfigured to operate the evaluation board with
the main power supply or 9 V adapter and to interfa e to the SDP
board.
POWER S PPLIES
Before applying power and signals to the evaluation board,
ensure that all link positions are set a ording to the required
operating mode. See Table 2 for the omplete list of link options.
The AD7606 evaluation board is supplied with a wall-
mountable swit hing power supply that provides 9 V d output.
Conne t the supply to a 100 V to 240 V a wall outlet at 50 Hz
to 60 Hz. The output from the supply is provided through a 2.0
mm inner diameter ja k that onne ts to the evaluation board
at J1. The 9 V supply is onne ted to the on-board, 5 V linear
regulator that supplies the orre t bias to ea h of the various
se tions on the evaluation board and on the EVAL-SDP-CB1Z
SDP board.
When using the EVAL-AD7606SDZ evaluation board with the
EVAL-SDP-CB1Z SDP board, power the evaluation board
through the J1 onne tor.
If the evaluation board is used without the 9 V adapter, an
external power supply in the range 7 V to 9 V must be
onne ted to J3 to supply the ADP7104 5V linear regulator.
Ea h supply is de oupled on this evaluation board using 10 µF
tantalum and 100 nF multilayer erami apa itors.
Table 1. External Power upplies Required
Power
Supply
Voltage
Range Description
DC Jack 7 V to 9 V ± 5% Su lies ower to on-board
ower management devices
J3 7 V to 9 V Digital logic su ly

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Table 2. Link Options
Link Default Position Function
LK1 A This link is used to select the ower su ly source for the EVAL-AD7606SDZ.
In Position A, the board is owered with the J1 wall wart connector.
In Position B, The J3 terminal block s the source.
LK2 INSERT This link is used to su ly the SDP ower su ly form the AD7606SDZ board
Inserted the EVAL-SDP-CB1Z is owered from the ADP7104 5V linear regulator
LK3 B LK3 is used to select the VDrive source for the AD7606.
In Position A: The AD7606 is su lied with 3.3V Drive
In Position B, the AD7606 is su lied with 5V VDrive, 5V VDrive is needed to run the device at 200KSPS
in serial interface mode.
SL1 A In Position A, the CS signal is su lies from the SDP terminal J2.
In Position B, The CS SMB is selected.
SL2 A In Position A, the SCLK signal is su lies from the SDP terminal J2.
In Position B, The SCLK SMB is selected.
SL3 A In Position A, the STANDBY signal is su lies from the SDP terminal J2.
In Position B, The STANDBY SMB is selected.
SL4 A In Position A, the CS signal is su lies from the SDP terminal J2.
In Position B, The CS SMB is selected.
SL5 A In Position A, the RESET signal is su lies from the SDP terminal J2.
In Position B, The RESET SMB is selected.
SL6 A In Position A, the CS signal is su lies from the SDP terminal J2.
In Position B, The CS SMB is selected.
SL7 A In Position A, the CONVST signal is su lies from the SDP terminal J2.
In Position B, The CONVST SMB is selected.
K0-15 DNI Solder links for by assing U5 level translator. In the

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SOCKETS/CONNECTORS
The onne tors and so kets on the AD7606 evaluation board
are outlined in Table 3.
Table 3. On-Board Connectors
Connector Function
J1 7 V to 9 V, 2.0 mm dc jack connector
J2 120-way connector for EVAL-SDP-CB1Z interface
J3 External ower connector, 7 V to 9 V dc in ut
J1-8 Analog in ut terminal block.
The default interfa e to this evaluation board is via the 120-way
onne tor, whi h onne ts the AD7606evaluation board to the
EVAL-SDP-CB1Z SDP board.

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EVALUATION BOARD SOFTWARE
SOFTWARE INSTALLATION
The EVAL-AD7606SDZ kit in ludes the evaluation software on
a CD; the software is also available for download from the
AD7606 produ t page.
There are two parts to the installation:
•EVAL-AD7606SDZ evaluation software installation
•EVAL-SDP-CB1Z SDP board drivers installation
Warning
The evaluation board software and drivers must be installed
before onne ting the evaluation board and SDP board to the
USB port of the PC to ensure that the evaluation system is
orre tly re ognized when it is onne ted to the PC.
Installing the Evaluation Software
To install the EVAL-AD7606SDZ evaluation board software
1. Insert the in luded evaluation software installation CD
into the CD drive of a Windows-based PC, and open the
ontents of the CD.
2. Double- li k the setup.exe file to begin the installation. By
default, the software is saved to the following lo ation:
C:\Program Files\Analog Devices\AD7606\.
3. A dialog box appears asking for permission to allow the
program to make hanges to your omputer. Cli k Yes to
begin the installation pro ess.
Figure 3. Evaluation Soft are Installation—User Account Control
4. Sele t the lo ation to install the software, and then li k Next.
Figure 4. Evaluation Soft are Installation—Destination Directory
5. A li ense agreement appears. Read the agreement, sele t I
accept the License Agreement, and then li k Next.
6. A summary of the installation is displayed. Cli k Next to
ontinue.
Figure 5. Evaluation Soft are Installation—Start Installation
7. A dialog box informs you when the evaluation software
installation is omplete. Cli k Next to pro eed with the
installation of the SDP drivers.
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Figure 6. Evaluation Soft are Installation—Installation Complete
8. The installation of the evaluation software ompletes.
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Installing the SDP Board Drivers
After the evaluation board software installation is omplete,
the ADI DP Drivers etup wizard window opens for the
installation of the EVAL-SDP-CB1Z SDP board drivers.
1. The ADI DP Drivers etup Wizard opens. Cli k Next >
to begin the driver installation pro ess.
Figure 7. EVAL-SDP-CB1Z Drivers Installation—Setup Wizard
2. Sele t a destination folder for the SDP drivers, and li k
Install.
Figure 8. EVAL-SDP-CB1Z Drivers Installation—Choose Install Location
3. Cli k Install to pro eed with the installation.
Figure 9. EVAL-SDP-CB1Z Drivers Installation—Windo s Security
4. The SDP drivers installation ompletes. Cli k Finish.
Figure 10. EVAL-SDP-CB1Z Drivers Installation—Complete
After the evaluation software installation is omplete, onne t
the EVAL-AD7606SDZ evaluation board to the EVAL-SDP-CB1Z
SDP board as des ribed in the Evaluation Board Hardware
se tion.
When you first plug in the EVAL-SDP-CB1Z SDP board via
the USB able provided, allow the Found Hardware Wizard
to run. After the drivers are installed, he k that the board is
onne ted orre tly by looking at the Device Manager of the
PC. The Device Manager an be found by right- li king
My Computer > Manage > Device Manager from the list of
ystem Tools.
The EVAL-SDP-CB1Z SDP board appears under ADI
Development Tools, as shown in Figure 11.
Figure 11. Device Manager
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Figure 12. AD7606/7/8 Main Windo
SOFTWARE OPERATION
The main fun tion of this window is to allow you to read
a predetermined number of samples from the evaluation board
and display them in both the time and frequen y domain. The
top portion of the s reen ontains the menu bar and the s reen
an be divided into three main se tions: Part Information,
Data Capture, and Linearity. The Data Capture tab onsists
of four subtabs: Waveform, Histogram, FFT, and ummary.

EVAL-AD7928SDZ User Guide
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, .S.A. • Tel: [phone] • Fax: [phone] • www.analog.com
Evaluating the AD7606 16-Bit simultaneous sampling, 8-Channel, SAR ADC
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS. Rev. PR.A| Page 11 of 13
USING T E SOFTWARE
CONFIG RATION TAB
The onfiguration tab ontains ontrol to onfigure the
AD7606. Options available to the user are Sampling Rate,
oversampling, range, and onvert start pulse width.
Sampling rate
This ontrol is used to in rease the rate of onvert start pulses
to the AD7606. The ontrol will a ept values from 769-200000
Hz. If oversampling is enabled the maximum limit of sampling
is de reases.
Oversampling
The oversampling he kbox is used to enable and disable
oversampling and hoose from rates of oversample by 2, 4, 8,
16, 32 & 64. See the datasheet for more information on the
digital filter profile. The maximum output datarate of the
AD7606 is limited by the sele ted oversampling rate
Range
The range he k box is used to alter the signal analysis
al ulations for the Histogram, Waveform, and FFT windows.
The range pin is not hardwired to a GPIO pin. The range is
sele ted by inserting either R1 or R2 resistor to tie the pin to
DGND or VDRIVE. The default range is ±10V.
Convst
The Convst ontrol is used to vary the onvert start pulse width.
This is set to 50ns default.
DATA CAPT RE TAB
In the Data Capture tab, the user an sele t the number of
samples to be aptured from the drop-down menu. The
default number of samples is 4096; you are free to hange
this as required. The desired display option is sele ted by
li king any one of the Waveform, Histogram, or FFT tab.
Waveform Tab
The Waveform tab displays a digital storage os illos ope
(DSO) that allows you to display a waveform. Samples are
displayed here when uploaded from the EVAL-SDP-CB1Z
board. The samples are displayed as integer ode values.
At the bottom left of the graph are the zoom options. These
allow you to zoom in and out to get a loser look at a sample.
The Waveform Analysis se tion, whi h is lo ated beneath the
waveform graph, ontains information about the samples taken;
for example, minimum/maximum position or velo ity, the
spread, the standard deviation, and the mean.
The waveform graph displays the information for all 8 input
hannels or as many hannels as desired. Eight buttons lo ated
to the right hand side of the graph, labeled ADC 1 On/ Off to
ADC 8 On/Off are used to sele t whi h hannel’s data is
displayed. An indi ator, lo ated beneath the graph, shows what
olor graph represents ea h hannel when the data from several
hannels is displayed.
istogram Tab
The Histogram tab displays a histogram of the aptured ADC
odes. It an be used to give an indi ation of the performan e
of the ADC in response to d inputs. The Histogram Analysis
se tion ontains information about the samples taken; for
example, maximum and minimum odes aptured.
FFT Tab
The FFT tab displays an fast Fourier transform (FFT) plot.
The FFT is typi ally used for examining the performan e of
the ADC in the frequen y domain. The pectrum Analysis
se tion ontains information about the samples taken, su h
as a spe ifi ations (see Figure 12).
You an hoose whether to display the information for one,
several or all eight hannels in the window using the ADC 1
On/ Off to ADC 8 On/Off buttons, as explained in the
Waveform Tab se tion.
TAKING SAMPLES
To initiate a onversion and apture the sample data, li k the
ample button or the Continuous button. Both the ample
and the Continuous buttons are lo ated on the top right hand
orner of the Data Capture tab. When you li k the ample
button, the software instru ts the EVAL-SDP-CB1Zboard to
take the required number of samples at the required frequen y
from the evaluation board. The EVAL-AD7606 runs with
sampling speeds less than or equal to 200 kSPS. You an hoose

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the sampling frequen y up to this rate and the number of
samples to be taken.
The samples taken are then uploaded and displayed. An FFT
and/or histogram an be al ulated and displayed. If you li k
the Continuous button, the software repeats the pro ess indefi-
nitely until you li k top. (The Continuous button swit hes
to top when li ked).
Note that no data appears on the s reen if the hannels are not
sele ted. The ADC 1 On/ Off to ADC 8 On/Off buttons in the
Part Information se tion should be set to ON to sele t the
desired hannels.

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Rev. PR.A | Page 13 of 13
NOTES
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this roduct features atented or ro rietary rotection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, ro er ESD recautions should be taken to avoid erformance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, com onents documentation or su ort materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have urchased 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 acce tance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its rinci al lace 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, ersonal,
tem orary, 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 rovided
for the sole and exclusive ur ose referenced above, and agrees not to use the Evaluation Board for any other ur ose. Furthermore, the license granted is ex ressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, dis lay, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) ermit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party” includes any entity other than ADI, Customer, their em loyees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not ex ressly granted herein, including
ownershi of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and ro rietary information of ADI. Customer may
not disclose or transfer any ortion of the Evaluation Board to any other arty for any reason. U on discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to
rom tly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decom ile or reverse engineer chi s 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 com ly with a licable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time u on 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 ex ort the Evaluation Board to another country, and that it will com ly with all a licable
United States federal laws and regulations relating to ex orts. 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 ersonal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not a ly to this Agreement and is ex ressly disclaimed.
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registered trademarks are the property of their respective owners.
G12774-0-1/15(0)