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Evaluation Board User Guide

UG-408

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 AD7366/AD7367

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. A | Page 1 of 20

FEATURES

Full-featured evaluation board for the AD7366/AD7367

PC control in conjunction with the system demonstration

platform (EVAL-SDP-CB1Z)

PC software for control and data analysis (time and

frequency domain)

Standalone capability

ONLINE RESOURCES

Evaluation kit contents

AD7366/AD7367 evaluation board

Evaluation software CD for the AD7366/AD7367

EVAL-AD7366/AD7367SDZ

9 V mains power supply adapter

Document needed for reference

AD7366/AD7367 data sheet

Required software

EVAL-AD7366SDZ/AD67SDZ evaluation software

Design and integration files

Schematics, layout files, and bill of materials

EQUIPMENT NEEDED

System demonstration platform (EVAL-SDP-CB1Z)

Precision analog signal source

SMB cables

USB cables

PC running Windows™ with USB 2.0 port

GENERAL DESCRIPTION

The EVAL-AD7366SDZ/EVAL-AD7367SDZ is a full-featured

evaluation board, designed to allow the user to easily evaluate

all features of the AD7366/AD7367. The evaluation board

can be control-led via the system demonstration platform

(SDP) connector (J8). The EVAL -SDP-CB1Z board allows

the evaluation board to be controlled via the USB port of a

PC using the AD7366/AD7367 evaluation software.

The E VA L-AD7366SDZ/EVAL-AD7367SDZ generates all

required power supplies on board and supplies power to the

EVA L-SDP-CB1Z controller board.

On-board components include

• AD8021: Low noise, high speed amplifier for 16-bit

systems

• ADP1613: Step-up PWM dc-to-dc switching converter

• ADP3303-5: High accuracy anyCAP™ 200 mA low dropout

linear regulator

• ADP2301: 1.2 A 20 V, 1.4 MHz nonsynchronous step-

down switching regulator

• ADP1720: 50 mA, high voltage, micropower linear

regulator

• ADM1185: Quad voltage monitor and sequencer

• ADG3308: Low voltage, 1.15 V to 5.5 V, 8-channel

bidirectional logic level translator

• AD780

: 5 V/3.0 V ultrahigh p

recision band gap voltage

reference

Various link options are described in the Evaluation Board

Hardware section.

Summary of content (20 pages)

PAGE 1
Evaluation Board User Guide UG-408 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.
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UG-408 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Analog Inputs.................................................................................8 Online Resources .............................................................................. 1 Reference Options .........................................................................8 Equipment Needed ...........................................
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Evaluation Board User Guide UG-408 FUNCTIONAL BLOCK DIAGRAM GND ADP1613 ±15V ADP3303 +5V VSS GND VIN GND ON-BOARD POWER SUPPLIES AM1185 POWER SEQUENCER VCC OP AMP SUPPLIES + – ADP2301 SDP 5V ADP1720 3.
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UG-408 Evaluation Board User Guide QUICK START GUIDE 4. RECOMMENDED QUICK START STEPS To install the software, complete the following steps: 2. 3. Install the AD7366/AD7367 software from the enclosed CD. Ensure that the EVAL-SDP-CB1Z board is disconnected from the USB port of the PC while installing the software. The PC must be restarted after the installation. Connect the EVAL-SDP-CB1Z board to the EVALAD7366SDZ/EVAL-AD7367SDZ board as shown in Figure 2.
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Evaluation Board User Guide UG-408 EVALUATION BOARD HARDWARE AD7366/AD7367 DEVICE DESCRIPTION The AD7366/AD7367 are dual 12-bit/14-bit, high speed, low power, successive approximation analog-to-digital converters (ADCs) that feature throughput rates up to 1 MSPS. The device contains two ADCs, each preceded by a 2-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier. The AD7366/AD7367 are fabricated on the Analog Devices, Inc.
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UG-408 Evaluation Board User Guide HARDWARE LINK OPTIONS There are 23 link options, which must be set for the required operating setup before using the evaluation board. The functions of these options are outlined in Table 1. Table 1 shows the position in which all the links are set when the evaluation board is packaged. Jumper and solder link (LKx) options must be set correctly to select the appropriate operating setup before using the evaluation board.
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Evaluation Board User Guide Link No. LK23 LK24 LK27 LK1011 LK1021 1 UG-408 Function DVCC Source Selection. Position A: DVCC to AD7366/AD7367 supplied from on-board 5 V supply. Position B: DVCC to AD7366/AD7367 supplied from external supply via J704. AVCC Source Selection. Position A: AVCC to AD7366/AD7367 supplied from on-board 5 V supply. Position B: AVCC to AD7366/AD7367 supplied from external supply via J703. BIAS-UP Voltage Selection Source: Select voltage source supplied to U9 Pin 3.
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UG-408 Evaluation Board User Guide POWER SUPPLIES STANDALONE MODE Care should be taken before applying power and signals to the evaluation board to ensure that all link positions are as required by the operating mode. The evaluation board may also be used without the EVAL-SDPCB1Z. In this case, connection to the digital interface in made via the SMB connectors or, if preferred, by the test points.
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Evaluation Board User Guide UG-408 BASIC HARDWARE SETUP The AD7366/AD7367 evaluation board connects to the (EVAL-SDP-CB1Z) system demonstration board. The EVAL-SDP-CB1Z board is the controller board, which is the communication link between the PC and the main evaluation board. Figure 2 shows a photograph of the connections made between the AD7366/AD7367 daughter board and the EVAL-SDP-CB1Z board.
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UG-408 Evaluation Board User Guide EVALUATION BOARD SOFTWARE SOFTWARE INSTALLATION The EVAL-AD7366SDZ/EVAL-AD7367SDZ evaluation kit includes software on a CD. Click the setup.exe file from the CD to run the install. The default location for the software is C:\Program Files\Analog Devices\AD7366/AD7367. It is important to install the evaluation software before connecting the evaluation board and the EVAL-SDP-CB1Z board to the USB port of the PC.
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06704-011 UG-408 06704-008 Evaluation Board User Guide Figure 11. ADI EVAL-SDP-CB1Z Drivers Setup Window 4 06704-012 Figure 8. ADI EVAL-SDP-CB1Z Drivers Setup Window 1 06704-009 Figure 12. ADI EVAL-SDP-CB1Z Drivers Setup Window 5 06704-010 Figure 9. ADI EVAL-SDP-CB1Z Drivers Setup Window 2 Figure 10. ADI EVAL-SDP-CB1Z Drivers Setup Window 3 Rev.
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UG-408 Evaluation Board User Guide 06704-013 When you first plug in the EVAL-SDP-CB1Z board via the USB cable provided, allow the new Found Hardware Wizard to run. Once the drivers are installed, you may check that the board has connected correctly by looking at the Device Manager of the PC. The Device Manager can be found by right clicking on My Computer>Manage>Device Manager from the list of System Tools as shown in Figure 13. The EVAL-SDP-CB1Z board should appear under ADI Development Tools.
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UG-408 06704-015 Evaluation Board User Guide Figure 15. User Software Panel Rev.
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UG-408 Evaluation Board User Guide DESCRIPTION OF USER SOFTWARE PANEL The user software panel, as shown in Figure 15, has the following features. Refer to the labels numbered 1 through 11. File menu (labeled 1 in Figure 15) offers choices of • • • • • Load data. Load previously captured data in tab separated values (tsv) format for analysis. Save data as .tsv. Save captured data in tsv format for future analysis. Print front panel picture. Use to print the front panel to your default printer.
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UG-408 06704-016 Evaluation Board User Guide Figure 16. Waveform Capture Tab WAVEFORM CAPTURE Figure 16 illustrates the waveform capture tab. The input signal here is a 50 kHz sine wave. The waveform analysis (labeled 1) reports back the amplitudes recorded from the captured signal in addition to the frequency of the signal tone. Rev.
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Evaluation Board User Guide 06704-017 UG-408 Figure 17. Histogram Capture Tab AC TESTING–HISTOGRAM Figure 17 shows the histogram capture tab. This tests the ADC for the code distribution for ac input. In addition, it 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 the Histogram tab from the test selection window and click Start.
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UG-408 06704-018 Evaluation Board User Guide Figure 18. FFT Capture Tab AC TESTING–FFT CAPTURE Figure 18 shows the FFT capture tab. This tests the traditional ac characteristics of the converter and displays a fast Fourier transform (FFT) of the results. As in the histogram test, raw data is captured and passed to the PC where the FFT is performed displaying SNR, SINAD, THD, and SFDR. To perform an ac test, apply a sinusoidal signal to the evaluation board at the SMB inputs J4/63.
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Evaluation Board User Guide 06704-019 UG-408 Figure 19. Summary Tab SUMMARY TAB Figure 19 shows the summary tab. This tab captures display information and provides this data in one panel with a synopsis of the information, including key performance parameters, such as SNR and THD. Rev.
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Evaluation Board User Guide UG-408 SAVE FILE LOAD FILE The software can save the current captured data for later analysis; the file format is .tsv (tab separated values) (see Figure 20). User is prompted with a load dialog box. User may have to navigate to find these example files (see Figure 21). The default location for the example files is C:\Program Files\Analog Devices\AD7366\examples.
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UG-408 Evaluation Board User Guide 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.