Analog Devices EVAL-AD7605-4SDZ User manual

EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-
AD7607SDZ/EVAL-AD7608SDZ User Guide
UG-851
One Technology Way •P. O. Box 9106 •Norwood, MA 02062-9106, U.S.A. •Tel: [phone] •Fax: [phone] •www.analog.com
Evaluating the AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and AD7605-4
16-Bit Simultaneous Sampling, 8-/6-/4-Channel, SAR ADC
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 15
FEATURES
Full-featured evaluation board for the AD7606/AD7606-6/
AD7606-4, AD7607, AD7608, and AD7605-4
On-board power supplies
Standalone capability
System demonstration platform (SDP) compatible (EVAL-
SDP-CB1Z)
PC software for control and data analysis (download from the
AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and
AD7605-4 product pages)
EVALUATION KIT CONTENTS
EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7606-
6SDZ/EVAL-AD7606-4SDZ/EVAL-AD7607SDZ/EVAL-
AD7608SDZ evaluation board
Evaluation software CD for the AD7606/AD7606-6/AD7606-4,
AD7607, AD7608, and AD7605-4
Mains power supply adapter
Screw/nut kit
ADDITIONAL EQUIPMENT NEEDED
EVAL-SDP-CB1Z system demonstration platform
PC running Windows® Vista or Windows 7 with a USB 2.0 port
Signal source
SMB and USB cables
ONLINE RESOURCES
Documents Needed
AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and
AD7605-4 data sheets
EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7606-
6SDZ/EVAL-AD7606-4SDZ/ EVAL-AD7607SDZ/EVAL-
AD7608SDZ user guide
Required Software
AD7606 evaluation software
Design and Integration Files
Schematics, layout files, bill of materials
EVALUATION BOARD DESCRIPTION
The E VA L -AD7605-4SDZ/E VA L -AD7606SDZ/EVA L -AD7606-
6SDZ/EVA L -AD7606-4SDZ/EVA L -AD7607SDZ/E VA L -
AD7608SDZ is a full-featured evaluation board that allows
users to easily evaluate the features of the AD7606/AD7606-6/
AD7606-4, AD7607, AD7608, and AD7605-4 analog-to-digital
converters (ADCs). The evaluation board can be controlled by
the EVAL -SDP-CB1Z SDP board via a 120-way SDP connector
(J2). The SDP board allows the evaluation board to be controlled
through the USB port of a PC using the AD7606 evaluation
software. The software is available for download from the AD7606/
AD7606-6/AD7606-4, AD7607, AD7608, and AD7605-4 product
pages or from the installer CD included in the evaluation board kit.
On-board components include an ADP7104ARDZ-5.0 5 V, low
noise low dropout regulator (LDO) and an ADR421 high
precision, band gap voltage reference.
Full data on the AD7606/AD7606-6/AD7606-4, AD7607,
AD7608, and AD7605-4 is available in the AD7606/AD7606-
6/AD7606-4, AD7607, AD7608, and AD7605-4 data sheets,
which should be consulted in conjunction with this user guide
when using the evaluation board. Full details on the EVA L -SDP-
CB1Z are available at the SDP board product page.
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UG-851 EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide
Rev. A | Page 2 of 15
TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Kit Contents................................................................... 1
Additional Equipment Needed ....................................................... 1
Online Resources.............................................................................. 1
Evaluation Board Description......................................................... 1
Revision History ............................................................................... 2
Quick Start Guide............................................................................. 3
Evaluation Board Hardware ............................................................ 4
Device Description....................................................................... 4
Hardware Link Options............................................................... 4
Sockets/Connectors...................................................................... 4
Power Supplies .............................................................................. 4
Channel Input................................................................................4
Evaluation Board Software...............................................................6
Software Installation .....................................................................6
Description of Main Window......................................................8
Wav ef or m C aptu re Tab .............................................................. 10
Histogram Tab ............................................................................ 11
AC Testing —FFT Capture ........................................................ 12
Summary Tab.............................................................................. 13
Saving Files.................................................................................. 14
Opening Files.............................................................................. 14
REVISION HISTORY
9/2016—Rev. 0 to Rev. A
Added EVAL-AD7605-4SDZ and AD7605-4............ Throughout
Changes to Quick Start Guide Section .......................................... 3
Changes to Power Supplies Section, Channel Input Section,
EVA L-AD7606SDZ Section, E VA L-AD7607SDZ Section,
EVA L-AD7608SDZ Section, EVAL-AD7606-6SDZ Section,
and Table 2......................................................................................... 4
Changes to E VA L -AD7606-4SDZ Section and Table 3 ................ 5
Changes to Installing the Evaluation Software Section,
Figure 2 Caption, Figure 3 Caption, Figure 4 Caption, and
Figure 5 Caption ............................................................................... 6
Changes to Installing the SDP Board Drivers Section,
Figure 6 Caption, Figure 7 Caption, Figure 8 Caption, and
Figure 9 Caption ............................................................................... 7
Changes to the Description of Main Window Section,
Sampling Rate Section, and Range Section....................................8
Added Selecting Active Channels Section .....................................8
Changes to Taking Samples Section................................................9
Changes to Waveform Capture Tab Section ............................... 10
Changes to Histogram Tab Section.............................................. 11
Changes to AC Te st ing—FFT Capture Section.......................... 12
Changes to Summary Tab Section ............................................... 13
Changes to Saving Files Section and Changing Files Section .........14
8/2015—Revision 0: Initial Version
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EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide UG-851
Rev. A | Page 3 of 15
QUICK START GUIDE
Follow these steps to quickly evaluate the AD7606/AD7606-6/
AD7606-4, AD7607, AD7608, and AD7605-4 ADCs. For detailed
instructions, see the subsequent sections.
1. Install the evaluation software from the AD7606/AD7606-6/
AD7606-4, AD7607, AD7608, and AD7605-4 product pages
or from the CD included in the evaluation kit. Ensure the
EVAL-SDP-CB1Z SDP board is disconnected from the USB
port of the PC while installing the software. The PC may
need to be restarted after the installation.
2. Ensure the various link options are configured as outlined
in Table 3.
3. Connect the EVAL-SDP-CB1Z SDP board to the
evaluation board as shown in Figure 1. Screw the EVAL-
SDP-CB1Z SDP board and EVAL-AD7605-4SDZ/EVAL-
AD7606SDZ/EVAL-AD7606-6SDZ/EVAL-AD7606-4SDZ/
EVAL-AD7607SDZ/EVAL-AD7608SDZ evaluation board
together using the enclosed nylon screw/nut kit to ensure
the boards connect firmly together.
4. Connect a 5 V power supply to the J1 connector and
ensure Link LK1 is in Position A.
5. Connect the EVAL-SDP-CB1Z SDP board to the PC via
the USB cable. Choose to automatically search for the drivers
for the SDP board if prompted by the operating system.
6. Launch the evaluation software from the Analog Devices
subfolder in the Programs menu.
7. Connect an input signal via the V1 to V8 terminal blocks.
Figure 1. Evaluation Board (Left) Connected to the SDP Board (Right)
13283-002
J1
V1 TO V8
LK1
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UG-851 EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide
Rev. A | Page 4 of 15
EVALUATION BOARD HARDWARE
DEVICE DESCRIPTION
The AD7605-4, AD7606/AD7606-6/AD7606-4, AD7607, and
AD7608 are 16-bit, 8-/6-/4-channel, simultaneous sampling
successive approximation ADCs. The devices operate from a single
2.7 V to 5.25 V power supply and feature throughput rates of up
to 200 kSPS. The devices have on-board 1 MΩ input buffers for
direct connection from the user sensor outputs to the ADC.
HARDWARE LINK OPTIONS
The functions of the link options are described in Table 3. The
default setup is configured to operate the evaluation board with
the main power supply or 9 V adapter and to interface to the
SDP board.
SOCKETS/CONNECTORS
The connectors and sockets on the evaluation board are
outlined in Table 1.
Table 1. 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 power terminal block, 7 V to 9 V dc input
V1 to V8 Analog input SMB connectors
The default interface to this evaluation board is via the 120-way
connector, which connects the AD7606/AD7606-6/AD7606-4,
AD7607, AD7608, and AD7605-4 evaluation board to the
EVAL-SDP-CB1Z SDP board.
POWER SUPPLIES
Before applying power and signals to the evaluation board, ensure
all link positions are set according to the required operating mode.
See Table 3 for the complete list of link options.
The AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and
AD7605-4 evaluation board is supplied with a wall-mountable
switching power supply that provides 9 V dc output. Connect
the supply to a 100 V to 240 V ac wall outlet at 50 Hz to 60 Hz.
The output from the supply is provided through a 2.0 mm inner
diameter jack that connects to the evaluation board at the J1
connector. The 9 V supply is connected to the on-board, 5 V
linear regulator that supplies the correct bias to each of the
various sections on the evaluation board and on the EVAL-
SDP-CB1Z SDP board.
When using the EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/
EVAL-AD7606-6SDZ/ EVAL-AD7606-4SDZ/EVAL-AD7607SDZ/
EVAL-AD7608SDZ evaluation board with the EVAL-SDP-CB1Z
SDP board, power the evaluation board through the J1 connector.
If the EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-
AD7606-6SDZ/EVAL-AD7606-4SDZ/EVAL-AD7607SDZ/EVAL-
AD7608SDZ evaluation board is used without the 9 V adapter, an
external power supply in the range 7 V to 9 V must be connected to
the J3 terminal block to supply the ADP7104 5 V linear regulator.
Each supply is decoupled on the EVAL-AD7605-4SDZ/EVAL-
AD7606SDZ/EVAL-AD7606-6SDZ/ EVAL-AD7606-4SDZ/EVAL-
AD7607SDZ/EVAL-AD7608SDZevaluation board using 10 μF
tantalum and 100 nF multilayer ceramic capacitors.
Table 2. External Power Supplies Required
Power Supply
Input
Voltage
Range (V) Description
J1connector 7 to 9 Default power supply option using
the supplied mains power adapter
J3 terminal
block
7 to 9 Alternative power supply option
Requires external source
CHANNEL INPUT
Depending on the specific evaluation board, the external signal
can be applied to various combinations of V1 to V8.
Connectors V1 to V8 allow users to connect external signals to
the ADC channel inputs. The evaluation board is supplied with
the connection options that are required for the specific device
number that is being evaluated. The various combinations of
connection options to which external signals can be applied are
defined in the following sections.
EVAL-AD7606SDZ
The EVAL-AD7606SDZ evaluation board is supplied with the
AD7606 mounted at U1 (see Figure 1). The AD7606 is an 8-
channel data acquisition system (DAS) with a simultaneous
sampling ADC. On this evaluation board external signals can
be applied to the V1 to V8 terminal blocks.
EVAL-AD7607SDZ
The EVAL-AD7607SDZ evaluation board is supplied with the
AD7607 mounted at U1 (see Figure 1). The AD7607is an 8-
channel DAS with a simultaneous sampling ADC. On this
evaluation board external signals can be applied to the V1 to V8
terminal blocks.
EVAL-AD7608SDZ
The EVAL-AD7608SDZ evaluation board is supplied with the
AD7608 mounted at U1 (see Figure 1). The AD7608 is an 8-
channel DAS with a simultaneous sampling ADC. On this
evaluation board external signals can be applied to the V1 to V8
terminal blocks.
EVAL-AD7606-6SDZ
The EVAL-AD7606-6SDZ evaluation board is supplied with the
AD7608 mounted at U1 (see Figure 1). The AD7606-6 is a 6-
channel DAS with a simultaneous sampling ADC. External
signals can be applied to V1, V2, V3, V5, V6, and V7. Input
Connectors V5 to V7 route to the AD7606-6 V4 to V6 input
channels, respectively.
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EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide UG-851
Rev. A | Page 5 of 15
EVAL-AD7606-4SDZ
The E VA L -AD7606-4SDZ evaluation board is supplied with the
AD7606-4 mounted at U1 (see Figure 1).The AD7606-4 is a 4-
channel DAS with simultaneous sampling ADC. External signals
can be applied to V1, V2, V5, and V6. Input Connectors V5 and
V6 route to the AD7606-4 V3 and V4 input channels,
respectively.
EVAL-AD7605-4SDZ
The E VA L -AD7605-4SDZ evaluation board is supplied with the
AD7605-4 mounted at U1 (see Figure 1)The AD7605-4 is a 4-
channel DAS with a simultaneous sampling ADC. External signals
can be applied to V1, V2, V5, and V6. Input Connectors V5 and
V6 route to AD7605-4 V3 and V4 input channels, respectively.
Table 3. Link Options
Link Default Position Function
LK1 A This link is used to select the power supply source for the evaluation board.
In Position A, the board can be powered by the supplied wall mounted switching supply using the J1
connector.
In Position B, the evaluation board must be powered by an external supply connected to the J3 terminal block.
LK2 Insert LK2 supplies the SDP power supply from the evaluation board.
The EVAL-SDP-CB1Z is powered from the ADP7104 5 V linear regulator.
LK3 B LK3 is used to select the VDRIVE source for the AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and AD7605-4.
In Position A, the AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and AD7605-4 are supplied with 3.3 V VDRIVE.
In Position B, the AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and AD7605-4 are supplied with 5 V VDRIVE,
5 V VDRIVE runs the device at 200 kSPS in serial interface mode.
SL1 A In Position A, the CS signal is supplied from the SDP terminal, J2.
In Position B, The CS SMB is selected.
SL2 A In Position A, the SCLK signal is supplied from the SDP terminal, J2.
In Position B, the SCLK SMB is selected.
SL3 A In Position A, the STBY signal is supplied from the SDP terminal, J2.
In Position B, the STBY SMB is selected.
SL4 A In Position A, the CS signal is supplied from the SDP terminal, J2.
In Position B, the CS SMB is selected.
SL5 A In Position A, the RESET signal is supplied from the SDP terminal, J2.
In Position B, the RESET SMB is selected.
SL6 A In Position A, the CS signal is supplied from the SDP terminal, J2.
In Position B, the CS SMB is selected.
SL7 A In Position A, the CONVST signal is supplied from the SDP terminal, J2.
In Position B, the CONVST SMB is selected.
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UG-851 EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide
Rev. A | Page 6 of 15
EVALUATION BOARD SOFTWARE
SOFTWARE INSTALLATION
The E VA L -AD7605-4SDZ/E VA L -AD7606SDZ/EVA L -AD7606-
6SDZ/E VAL -AD7606-4SDZ/EVA L-AD7607SDZ/EVA L -
AD7608SDZ kit includes the evaluation software on a CD;
the software is also available for download from the
AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and
AD7605-4 product pages.
There are two parts to the installation:
•AD7606 evaluation software installation
•EVA L-SDP-CB1Z SDP board drivers installation
Warning
The evaluation board software and drivers must be installed before
connecting the E VA L -AD7605-4SDZ/EVA L-AD7606SDZ/EVA L-
AD7606-6SDZ/EVA L-AD7606-4SDZ/EVA L -AD7607SDZ/E VA L -
AD7608SDZ evaluation board and SDP board to the USB port
of the PC to ensure the evaluation system is correctly recognized
when it is connected to the PC.
Installing the Evaluation Software
To install the AD7606 evaluation board software,
1. Insert the included evaluation software installation CD
into the CD drive of a Windows-based PC, and open the
contents of the CD.
2. Double-click the setup.exe file to begin the installation.
By default, the software is saved to the following location:
C:\Program Files\Analog Devices\AD7606\.
3. A dialog box appears asking for permission to allow the
program to make changes to the PC. Click Ye s to begin the
installation process (see Figure 2).
Figure 2. User Account Control Dialog Box
4. Select a location to install the software, and then click Next
(see Figure 3).
Figure 3. Destination Directory Window
5. A license agreement appears. Read the agreement, select
I accept the License Agreement, and click Next.
6. A summary of the installation appears. Click Next to
continue (see Figure 4).
Figure 4. Start Installation Window
7. A dialog box informs the user when the evaluation
software installation is complete. Click Next to proceed
with the installation of the SDP drivers (see Figure 5).
Figure 5. Installation Complete Window
8. The installation of the evaluation software completes.
13283-003
13283-004
13283-005
13283-006
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EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide UG-851
Rev. A | Page 7 of 15
Installing the SDP Board Drivers
After the AD7606 evaluation board software installation is
complete, the ADI SDP Drivers Setup wizard window opens
for the installation of the EVAL -SDP-CB1Z SDP board drivers.
1. The ADI SDP Drivers Setup Wizard opens. Click Next to
begin the driver installation process (see Figure 6).
Figure 6. Setup Wizard Welcome Window
2. Select a destination folder for the SDP drivers and click
Install (see Figure 7).
Figure 7. Choose Install Location Window
3. Click Install again to proceed with the installation (see
Figure 8).
Figure 8. Windows Security Dialog Box
4. When the SDP drivers installation completes, click Finish
(see Figure 9).
Figure 9. Completion of Installation Window
After the evaluation software installation is complete, connect the
EVA L-AD7605-4SDZ/E VA L -AD7606SDZ/E VA L -AD7606-6SDZ/
EVA L-AD7606-4SDZ/EVA L -AD7607SDZ/EVAL -AD7608SDZ
evaluation board to the EVA L -SDP-CB1Z SDP board as described
in the Evaluation Board Hardware section.
When first plugging in the E VA L -SDP-CB1Z SDP board via
the USB cable provided, allow the Found Hardware Wizard
to run. After the drivers are installed, check that the evaluation
board is connected correctly by looking at the Device Manager
of the PC. The Device Manager can be found by right-clicking
My Computer > Manage > Device Manager from the list of
System Tools.
The E VA L -SDP-CB1Z SDP board appears under ADI
Development Tools, shown in Figure 10.
Figure 10. Device Manager
13283-007
13283-008
13283-009
13283-010
13283-011
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UG-851 EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide
Rev. A | Page 8 of 15
DESCRIPTION OF MAIN WINDOW
The following tools allow the user to control the operation of
the AD7606 evaluation board software and the capturing and
displaying of data from the ADC. When the software launches,
the main AD7606 evaluation software window opens (see
Figure 11).
The main evaluation software window, shown in Figure 11, has
the following features:
•Menu bar
•Control buttons
•Configuration tab, Waveform tab, Histogram tab, FFT
tab, and Summary tab
Menu Bar
The menu bar, Label 1 in Figure 11, consists of the File and
Help menus.
The File menu includes the following options:
•Save Data—This option saves captured data in comma
separated values (CSV) format for future analysis.
•Load Data—This option loads previously captured data in
CSV format for analysis.
•Print Front Panel—This option prints the front panel.
•Save As Picture—This option saves the currently displayed
graph of data as an image in JPEG file format.
•Exit—This option exits the program.
The Help menu includes the following option:
•Analog.com—This option links to the Analog Devices,
Inc., website.
Control Buttons, Drop-Down Boxes, and Indicators
The Configuration, Waveform, Histogram, FFT, and
Summary tabs control which tab is displayed. In each of these
tabs, device configuration and data analysis results can be set
and viewed, respectively.
Configuration Tab
The configuration tab contains controls to configure the
AD7606/AD7606-6/AD7606-4, AD7607, AD7608, and
AD7605-4. Available controls include the sampling rate,
oversampling, range, and convert start pulse width.
Sampling Rate
Use the Sampling Rate field (Label 3 in Figure 11) to increase
the rate of convert start pulses to the AD7606/AD7606-6/
AD7606-4, AD7607, AD7608, and AD7605-4. The control
accepts values from 769 Hz to 200,000 Hz on the AD7606/
AD7606-6/AD7606-4, AD7607, AD7608, and AD7605-4, and
up to 300,000 Hz on the AD7605-4. If oversampling is enabled,
the maximum limit of sampling is decreased.
The E VA L -AD7606SDZ/EVA L -AD7606-6SDZ/EVA L -AD7606-
4SDZ/EVA L -AD7607SDZ/E VA L -AD7608SDZ evaluation board
can run with sampling rates (or sampling frequencies) up to
200 kSPS. The EVAL -AD7605-4SDZ can run with sampling
rates up to 300 kSPS. Enter the required sampling rate in the
Sampling Rate field (see Figure 11).
Oversampling
The Oversample Mode drop-down menu (Label 4 in Figure 11)
enables and disables oversampling and chooses from rates of
oversample by 2, 4, 8, 16, 32, and 64. See the AD7606/AD7606-6/
AD7606-4, AD7607, AD7608, and AD7605-4 data sheets for more
information about the digital filter profile. The maximum output
data rate of the AD7606/AD7606-6/AD7606-4, AD7607, AD7608,
and AD7605-4 is limited by the selected oversampling rate.
Oversampling is not available on the AD7605-4.
Range
The 5V / 10 V Range drop-down menu (Label 5 in Figure 11)
selects the range to be used by the software, and alters the signal
analysis calculations for the Histogram, Waveform, and FFT
tabs. This drop-down menu does not change the actual range of
the ADC, which is determined by the state of the RANGE pin.
The range of the ADC is set by inserting either the R1 resistor
or R2 resistor to tie the RANGE pin to DGND or VDRIVE. The
evaluation board is supplied with R1 inserted which ties the
RANGE pin to VDRIVE and sets the ADC range to ±10 V.
Ensure the range selected in the 5V / 10 V Range drop-down
menu matches the hardware configuration set by the R1 and R2
resistors. Failing to select the correct range can lead to inaccurate
calculations of the graphs and results displayed on the Histogram,
Waveform, FFT, and Summary tabs.
Convst Pulse Width
The Cnvst Pulse Width control (Label 6 in Figure 11) varies the
convert start pulse width and is set to 50 ns by default.
Samples
The user can select the number of samples captured from the
# Samples drop-down menu (Label 7 in Figure 11). The default
number of samples is 4096 but the number of samples can be
changed by the user.
Selecting Active Channels
The ADC 1 ON/ADC 1 OFF to ADC 8 ON/ADC 8 OFF
buttons allows the user to select the ADC channels from which
the software captures samples. Click the appropriate ADC 1
ADC 1 OFF to ADC 8 OFF button until the button displays ON.
For example, to turn on ADC Channel 2, click the ADC 2 OFF
button to change the label to ADC 2 ON, indicating data can be
captured from ADC Channel 2 when capturing is initiated. Only
ADC Channel 1 is selected by default.
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EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide UG-851
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Taking Samples
To initiate a conversion and capture the sample data, click the
Sample button or the Continuous button. Both the Sample and
the Continuous buttons are located at the top of the window
(Label 8 in Figure 11).
When the Sample button is clicked, the software instructs the
EVA L-SDP-CB1Z board to take the required number of samples
at the required sampling rate from the evaluation board. Once
the required number of samples are captured, the capturing
process stops and the data displayed in the Waveform ,
Histogram, FFT, or Summary tab updates.
If the Continuous button is clicked, the label on the button changes
to Stop, and the software repeats the capture of the selected
number of samples indefinitely until the user clicks Stop. While
the software is in the continuous capture mode, the data in the
Waveform, Histogram, FFT, or Summary tab is also continuously
updated.
No data appears on the screen if no active channels are selected.
See the Selecting Active Channels section for details on how to
select active channels.
Figure 11. AD7606 Evaluation Software Main Window
1
2
3
4
78
5
6
13283-012
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UG-851 EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide
Rev. A | Page 10 of 15
WAVEFORM CAPTURE TAB
The Waveform tab, shown in Figure 13, is used for waveform
capture.
The waveform analysis reports the amplitudes recorded from
the captured signal as well as the fundamental frequency of the
signal tone. The analysis report is generated for the ADC
channel selected via the ADC 1 ON/ADC 1 OFF to ADC 8
ON/ADC 8 OFF buttons (Label 1 in Figure 13).
At the bottom right of the graph are the zoom options. These
allow the user to zoom in to look closer at a sample. The Waveform
Analysis section (Label 2 in Figure 13), which is located beneath
the waveform graph, contains information about the samples taken;
the peak-to-peak amplitude, the minimum/maximum amplitude,
the mean, the standard deviation of the captured data, and the
fundamental frequency of the signal tone are shown.
The waveform graph displays the information for all eight input
channels or as many channels as desired. Eight buttons located
to the right of the graph, labeled ADC 1 ON/ADC 1 OFF to
ADC 8 ON/ADC 8 OFF, selects which channel data displays
(Label 1 in Figure 13). An indicator, located to the right of the
graph (Label 3 in Figure 13), shows what color graph represents
each channel when the data from several channels is displayed.
Data Capture Display
Four tabs display the conversion data in different formats:
Waveform, Histogram, FFT, and Summary.
The tools shown in Figure 12 allow user control of the different
chart displays within the four tabs.
Figure 12. Chart Tools
Figure 13. Waveform Tab
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1. USED FOR CONTROLLING
THE CURSOR IF PRESENT.
2. USED FOR ZOOMING INAND OUT.
3. USED FOR PANNING.
123
1
3
2
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HISTOGRAM TAB
Figure 14 shows the Histogram tab. To perform a histogram
test, select the Histogram tab in the AD7606 Evaluation
Software main window and click the Sample button or
Continuous button.A histogram requires a quality signal
source applied to at least one of the inputs (V1 to V8).
The Histogram tab displays a histogram of the captured ADC
codes. It can give an indication of the performance
of the ADC in response to dc inputs. The Histogram Analysis
section contains information about the samples taken, for
example, the maximum and minimum codes captured.
Figure 14. Histogram Tab
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UG-851 EVAL-AD7605-4SDZ/EVAL-AD7606SDZ/EVAL-AD7607SDZ/EVAL-AD7608SDZ User Guide
Rev. A | Page 12 of 15
AC TESTING—FFT CAPTURE
Figure 15 shows the FFT tab. The FFT tab analyzes the
performance of an ADC in the frequency domain. The FFT tab
tests the traditional ac characteristics of the converter and displays
a fast Fourier transform (FFT) of the results. The FFT tab shows
a plot of the computed FFT data.
The Spectrum Analysis pane contains further information
about the analysis, such as the calculated values of signal-to-
noise ratio (SNR), signal-to-noise-and-distortion (SINAD), and
total harmonic distortion (THD) (see Figure 15).
The user can choose to display the information for one, several,
or all eight channels in the FFT tab using the ADC 1 ON/ADC
1 OFF to ADC 8 ON/ADC 8 OFF buttons.
Figure 15. FFT Tab
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Rev. A | Page 13 of 15
SUMMARY TAB
Figure 16 shows the Summary tab. This tab captures and
displays all three of the plots from the Waveform, Histogram,
and FFT tabs in one pane with a synopsis of the information, as
well as some of the key performance parameters, such as SNR,
THD, S/N +D, and Dynamic Range (see Label 1 in Figure 16).
Figure 16. Summary Tab
1
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Rev. A | Page 14 of 15
SAVING FILES
The AD7606 evaluation software can save the captured data for
future analysis. The software can capture the current plot images
and the current device configuration, as well as the raw waveform
data, histogram data, and ac spectrum data.
Saving Data
To save data, go to the File menu and click Save Data. This
action saves the raw data captured as seen in the Waveform tab
in TSV format.
Figure 17. Save As Data Dialog Box
Saving Plot Images
To save plot images, go to the desired analysis tab, click the File
menu, and then click Save As Picture.
The images are saved in JPEG format and do not contain any
raw data information. Plots saved as images cannot be loaded
back into the evaluation environment.
OPENING FILES
Loading Captured Data
The software can load previously captured data for analysis.
Go to the File menu, click Load Data,and select waveform data
previously saved in TSV format. The waveform data is a raw
data capture that rebuilds the histogram and ac spectrum
analyses when loaded into the evaluation platform.
Figure 18. Open File Dialog Box
Figure 19. Save As Image Dialog Box
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Rev. A | Page 15 of 15
NOTES
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.
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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
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UG13283-0-9/16(A)
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