Analog Devices UG Series User Manual
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Analog Devices UG Series User Manual

Analog Devices UG Series User Manual

Evaluation board for the ad7124-8— 8-channel, low noise, low power, 24-bit s-d adc with in- amp and reference
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One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 •
8-Channel, Low Noise, Low Power, 24-bit S-D ADC with In- Amp and Reference

FEATURES

Full featured evaluation board for the AD7124-8
PC control in conjunction with the system demonstration
platform (EVAL-SDP-CB1Z)
PC software for control and data analysis (time domain)
Standalone capability

ONLINE RESOURCES

Evaluation Kit Contents
EVAL-AD7124-8SDZ evaluation board
Evaluation software CD for the AD7124-8
Documents Needed
AD7124-8 data sheet
AD7124-8 user guide
Required Software
EVAL-AD7124-8SDZ evaluation software

EQUIPMENT NEEDED

EVAL-AD7124-8SDZ evaluation board
EVAL-SDP-CB1Z
system demonstration platform
DC signal source
USB cable
PC running Windows with USB 2.0 port

GENERAL DESCRIPTION

The EVAL-AD7124-8SDZ evaluation kit features the AD7124-8
24-bit, low power, low noise analog-to-digital converter (ADC).
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
www.analog.com
Evaluation Board for the AD7124-8—

FUNCTIONAL BLOCK DIAGRAM

NOISE TEST
CIRCUITRY
AD7124-8
AN AL OG
AD7124-4
I N PU T S
SENSOR
CONNECTORS
VOLTAGE
REFERENCE
Figure 1. EVAL-AD7124-8SDZ Block Diagram
Rev. PrA | Page 1 of 36
Evaluation Board User Guide
A 7 V to 9 V external supply is regulated to 3.3 V to supply the
AD7124-8 and support all necessary components. The EVAL-
AD7124-8SDZ board connects to the USB port of the PC by
connection to the
The EVAL-AD7124-8SDZ software fully configures the
AD7124-8 device register functionality and provides dc time
domain analysis in the form of waveform graphs, histograms,
and associated noise analysis for ADC performance evaluation.
The EVAL-AD7124-8SDZ is an evaluation board that is designed
to allow the user to evaluate the features of the ADC. The user
PC software executable controls the AD7124-8 over the USB
through the system demonstration platform board
CB1Z).
EXT
7V to 9V VIN
VOL T AGE
REGU L AT OR
VOL T AGE
REGU L AT OR
SDP-B
REFI N
EVAL-SDP-CB1Z
motherboard.
PC
+
L ABVI EW
BASED
SOFT WARE
UG-XXX
(EVAL-SDP-

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Summary of Contents for Analog Devices UG Series

  • Page 1: Features

    Evaluation Board User Guide UG-XXX 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 AD7124-8— 8-Channel, Low Noise, Low Power, 24-bit S-D ADC with In- Amp and Reference FEATURES A 7 V to 9 V external supply is regulated to 3.3 V to supply the AD7124-8 and support all necessary components.

  • Page 2: Table Of Contents

    UG-XXX Evaluation Board User Guide TABLE OF CONTENTS Serial Interface ................6 Features ....................1 Analog Inputs.................6 Online Resources ................1 Reference Options .................7 Equipment Needed ................1 Evaluation Board Setup Procedures ...........7 General Description ................. 1 Evaluation Board Software ...............8 Functional Block Diagram ..............

  • Page 3: Eval-Ad7124-8Sdz Quick Start Guide

    Evaluation Board User Guide UG-XXX EVAL-AD7124-8SDZ QUICK START GUIDE Apply an external voltage in the range of 7 V to 9 V to the J3 To begin using the evaluation board, do the following: or J5 connecter of the EVAL-AD7124-8SDZ board. This With the EVAL-SDP-CB1Z board disconnected from the provides the power supply for the board.

  • Page 4: Evaluation Board Hardware

    UG-XXX Evaluation Board User Guide EVALUATION BOARD HARDWARE DEVICE DESCRIPTION this user guide when using the evaluation board. Full details about the EVAL-SDP-CB1Z are available on the Analog The AD7124-8 is a low power, low noise, complete analog front Devices, Inc., website. end for high precision measurement applications.
  • Page 5 Evaluation Board User Guide UG-XXX On-Board Connectors Table 2 provides information about the external connectors on the EVAL-AD7124-8SDZ. Table 2. On-Board Connectors Connector Function A 120-pin connector that mates with the EVAL-SDP-CB1Z (black colored controller board). Straight PCB Mount SMB/SMA Jack for master clock (not inserted). The EVAL-AD7124-8SDZ has the footprint to include an SMA/SMB connector, if an external clock source is being used to provide the master clock to the ADC.

  • Page 6: Power Supplies

    UG-XXX Evaluation Board User Guide POWER SUPPLIES SERIAL INTERFACE The evaluation board requires that an external power supply— The AD7124-8 evaluation board connects via the SPI to the either a bench top supply or a wall wart (dc plug) supply—be Blackfin®...

  • Page 7: Reference Options

    Evaluation Board User Guide UG-XXX REFERENCE OPTIONS Figure 3. Turning On the Internal 2.5 V Reference The EVAL-AD7124-8SDZ includes an external 2.5 V reference EVALUATION BOARD SETUP PROCEDURES (the ADR4525) and an internal 2.5 V reference. The default operation is to use the external reference input, which is set to After following the instructions in the Software Installation accept the 2.5 V ADR4525 on the evaluation board.

  • Page 8: Evaluation Board Software

    UG-XXX Evaluation Board User Guide EVALUATION BOARD SOFTWARE when the window opens, but you can select another location SOFTWARE INSTALLATION PROCEDURES by clicking Browse.) The EVAL-AD7124-8SDZ evaluation kit includes a CD containing software to be installed on your PC before you begin using the evaluation board.
  • Page 9 Evaluation Board User Guide UG-XXX A summary of the installation is displayed. Click Next to A dialog box informs you when the installation is continue. complete. Click Next. Figure 8. AD7124-8 Evaluation Software Installation: Indicating When the Installation Is Complete Figure 7.
  • Page 10 UG-XXX Evaluation Board User Guide Installing the EVAL-SDP-CB1Z System Demonstration Click Install to confirm that you would like to install the Platform Board Drivers drivers. After the installation of the evaluation software is complete, a welcome window is displayed for the installation of the EVAL- SDP-CB1Z system demonstration platform board drivers.

  • Page 11: Setting Up The System For Data Capture

    Procedures and Evaluation Board Hardware sections, set up the system for data capture as follows: From the Start menu, select Programs > Analog Devices > AD7124-8 > AD7124-8 Evaluation Board Software. Allow the Found New Hardware Wizard to run after the The main window of the software then displays.

  • Page 12: Software Operation

    UG-XXX Evaluation Board User Guide SOFTWARE OPERATION This details the revision of the software. Overview of the Main Window Exiting the Software The main window of the software (see Figure 16) contains three To exit the software, click the red X at the top right hand corner tabs: Configure, Waveform and Histogram.
  • Page 13 Evaluation Board User Guide UG-XXX Figure 16. Main Window ii. In the Filter_0 register, FS0 is set to 2047 and the Noise Test—Quick Start Demonstration sinc4 filter is selected. This sets the output data To perform a noise test using the AD7124-8 evaluation board, rate to 9.38 sps.
  • Page 14 UG-XXX Evaluation Board User Guide Figure 17. Configuration for Noise Test Rev. PrA | Page 14 of 36...
  • Page 15 Evaluation Board User Guide UG-XXX Figure 18. Example of the Main Window After Running a Noise Test Reading Samples from the ADC When Sampling is set to Capture, a batch of samples is read when Start Sampling is clicked, with the batch size The evaluation board is set up to use the external 2.5 V on- being set by the value in the Samples box.
  • Page 16 UG-XXX Evaluation Board User Guide Waveform enabled, each enabled channel can be selected and the conversions on that channel analysed using Analysis Channel. The waveforms resulting from the gathered samples are shown in the tab. The waveform graph shows each successive sample of The conversion data can be saved in a text file using File at the the ADC output (input referred).
  • Page 17 Evaluation Board User Guide UG-XXX Histogram This tab shows the histogram analysis. The indicators beside The conversion data can be saved in a text file using File at the this graph show the channels being converted. Navigation tools top of the window. To save the data into an Excel file. right-click are provided to allow you to control the cursor, zooming, and on the histogram graph and select Export Data from the drop- panning.

  • Page 18: Evaluation Board Schematics And Artwork

    UG-XXX Evaluation Board User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK Figure 21. Schematic Rev. PrA | Page 18 of 36...
  • Page 19 Evaluation Board User Guide UG-XXX Figure 22. Schematic – Power Supply Rev. PrA | Page 19 of 36...
  • Page 20 UG-XXX Evaluation Board User Guide Figure 23. Schematic – Regulators Rev. PrA | Page 20 of 36...
  • Page 21 Evaluation Board User Guide UG-XXX Figure 24. Schematic - SDP Rev. PrA | Page 21 of 36...
  • Page 22 UG-XXX Evaluation Board User Guide Figure 25. Top Printed Circuit Board (PCB) Silkscreen Rev. PrA | Page 22 of 36...
  • Page 23 Evaluation Board User Guide UG-XXX Figure 26. Layer 1 Component Side Rev. PrA | Page 23 of 36...
  • Page 24 UG-XXX Evaluation Board User Guide Figure 27. Layer 2 Ground Plane Rev. PrA | Page 24 of 36...
  • Page 25 Evaluation Board User Guide UG-XXX Figure 28. Layer 3 Power/Ground Plane Rev. PrA | Page 25 of 36...
  • Page 26 UG-XXX Evaluation Board User Guide Figure 29. Layer 4 Component Side Rev. PrA | Page 26 of 36...

  • Page 27: Eval-Ad7124-8Sdz Bill Of Materials

    Evaluation Board User Guide UG-XXX EVAL-AD7124-8SDZ BILL OF MATERIALS Table 4. Name Value Tolerance PCB Decal PART DESC Part Number STOCK CODE Straight PCB Mount SMB Jack, keep hole clear of solder Tyco 1-1337482-0 Do Not Insert Straight PCB Mount SMB Jack, keep hole clear of solder Tyco 1-1337482-0...
  • Page 28 UG-XXX Evaluation Board User Guide Capacitor ceramic, 50V, X7R, GRM188R71H 0.1uF ±10% C0402 0603 Murata 104K FEC 882-0023 Ceramic Capacitor, 50V, NPO, 0.1uF C0402 0603 Do Not Insert Capacitor ceramic, 50V, X7R, 2238 586 0.01uF C0402 0603 Phycomp 15636 FEC 722-236 Capacitor ceramic, 50V, X7R, GRM188R71H 0.1uF...
  • Page 29 Evaluation Board User Guide UG-XXX Capacitor ceramic, 50V, X7R, GRM188R71H 0.1uF ±10% C0603 0603 Murata 104K FEC 882-0023 Capacitor ceramic, 50V, X7R, GRM188R71H 0.1uF ±10% C0603 0603 Murata 104K FEC 882-0023 Ceramic Capacitor, 25V, NPO, 0.01uF C0402 0603 Do Not Insert LED- 0603HSML- Red LED, high intensity...
  • Page 30 UG-XXX Evaluation Board User Guide CON\POWE R8(3_81PITC 8-Pin Terminal header, pitch Phoenix 3.81mm, vertical Contact 1727078 Do Not Insert CON\POWE R8(3_81PITC 8-Pin Terminal header, pitch Phoenix MC 1,5/ 8-G- 3.81mm, vertical Contact 3,81 FEC 370-4774 SIP-6P- PCB Pads, 6-Way Solder Slot for ADT7320-CJC- ADT7320-CJC- 6-Way...
  • Page 31 Evaluation Board User Guide UG-XXX CRCW0402000 0.01 R0402 Resistor, 0402 Vishay 0Z0ED FEC 146-9661 CRCW0402000 0.01 R0402 Resistor, 0402 Vishay 0Z0ED FEC 146-9661 MC 0.0625W 0.01 R0402 Resistor, 0402, 1%, 30K Multicomp 0402 1% 30K FEC 135-8082 MC 0.0625W 10K2 0.01 R0402 SMD Resistor...
  • Page 32 UG-XXX Evaluation Board User Guide Resistor, Thick Film, 10Kohm, RC0402JR- 0.05 R0402 62.5mW, 5% Yageo 1310KL FEC 179-9316 Resistor, Thick Film, 10Kohm, RC0402JR- 0.05 R0402 62.5mW, 5% Yageo 1310KL FEC 179-9316 Resistor, Thick Film, 10Kohm, RC0402JR- 0.05 R0402 62.5mW, 5% Yageo 1310KL FEC 179-9316...
  • Page 33 Evaluation Board User Guide UG-XXX R0402 Resistor, 0402 Do Not Insert TESTPOINT- Test point, not inserted, keep REF+ SMALL hole clear of solder Do Not Insert TESTPOINT- Test point, not inserted, keep REF- SMALL hole clear of solder Do Not Insert TESTPOINT- Test point, not inserted, keep REFOUT...
  • Page 34 UG-XXX Evaluation Board User Guide TESTPOINT- Test point, not inserted, keep TSCLK SMALL hole clear of solder Do Not Insert TESTPOINT- Test point, not inserted, keep TSCLK1 SMALL hole clear of solder Do Not Insert TESTPOINT- Test point, not inserted, keep TSYNC SMALL hole clear of solder...
  • Page 35 (“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.
  • Page 36 UG-XXX Evaluation Board User Guide ©2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Rev. PrA | Page 36 of 36...

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