Analog Devices EVAL-AD7450A User Manual
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Analog Devices EVAL-AD7450A User Manual

Analog Devices EVAL-AD7450A User Manual

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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 • www.analog.com

FEATURES

Full-featured evaluation board for the
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

EVALUATION KIT CONTENTS

EVAL-AD7450ASDZ/EVAL-AD7451SDZ
Evaluation software CD for the
9 V mains power supply adapter

ADDITIONAL EQUIPMENT NEEDED

System demonstration platform (EVAL-SDP-CB1Z)
Precision analog signal source
SMB cables
USB cables

GENERAL DESCRIPTION

The
EVAL-AD7450ASDZ/EVAL-AD7451SDZ
evaluation board designed to allow the user to easily evaluate all
features of the
AD7450A
and AD7451. The evaluation board
VDD
GND
VAMP–
GND
VAMP+
UNIPOLAR/
BIPOLAR
SELECT
INPUT A
INPUT B
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Evaluating the
AD7450A
and
AD7451
evaluation board
AD7450A/AD7451
is a full-featured

FUNCTIONAL BLOCK DIAGRAM

POWER SUPPLIES
ADP1613
15V
ADP3303
+5V
OP AMP
SUPPLIES
SET TO DIFF
CIRCUIT
V
IN+
AD8599
V
IN–
AD8599
BIAS UP
CIRCUIT
AD8599
BUFFERS
EXT REF
AD8599
AD8599
Evaluation Board User Guide
AD7450A
and
AD7451
can be controlled via the system demonstration platform
(SDP) connector (J8). The
the evaluation board to be controlled via the USB port of a
PC using the
AD7450A/AD7451
The
EVAL-AD7450ASDZ/EVAL-AD7451SDZ
required power supplies on board and supplies power to the
EVAL-SDP-CB1Z
include the following:
•
AD8599: Ultralow distortion, ultralow noise op amp (dual)
•
ADP1613: Step-up PWM dc-to-dc switching converter
•
ADP3303-5: High accuracy anyCAP™ 200 mA low dropout
linear regulator
•
ADP1720: 50 mA, high voltage, micropower linear regulator
•
ADP7104: 20 V, 500 mA, low noise, CMOS LDO
•
ADM1185: Quad voltage monitor and sequencer
•
ADG3308: Low voltage, 1.15 V to 5.5 V, 8-channel
bidirectional logic level translator
•
ADR431: Ultralow noise XFET® voltage reference with
current sink and source capability
Various link options are described in the Evaluation Board
Hardware section.
VIN
GND
ON-BOARD
ADM1185
POWER
SEQUENCER
ADP7104
SDP5V
ADP1720
3.3V
V
DD
ADG3308
CS
AD7450A
LEVEL
SCLK
AD7451
SHIFTER
SDATA
V
REF
GND
ADR431
REF
EVAL-AD7450ASDZ/EVAL-AD7451SDZ
Figure 1.
Rev. A | Page 1 of 28
EVAL-AD7450A/EVAL-AD7451
EVAL-SDP-CB1Z
evaluation software.
controller board. On-board components
VIN
+
7V TO 9V
–
DC
INPUT
JACK
5V
BF527
DSP
SERIAL
INTERFACE
EVAL-SDP-CB1Z
CONTROLLER
BOARD
18MHz
SCLK
board allows
generates all

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Summary of Contents for Analog Devices EVAL-AD7450A

  • Page 1: Features

    Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 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 AD7450A AD7451 FEATURES can be controlled via the system demonstration platform (SDP) connector (J8). The...

  • Page 2: Table Of Contents

    Analog Inputs ................11 REVISION HISTORY 4/13—Rev. 0 to Rev. A Replaced EVAL-AD7440/AD7450A and EVAL-AD7441/AD7451 with EVAL-AD7450A/EVAL-AD7451 ......Universal Updated Format ..............Universal Replaced All Sections, Tables, and Figures ..... Universal 3/07—EVAL-AD7440/AD7450A Revision 0: Initial Version 12/06—EVAL-AD7441/AD7451 Revision 0: Initial Version...

  • Page 3: Getting Started

    EVAL- Launch the EVAL-AD7450ASDZ/EVAL-AD7451SDZ AD7450ASDZ/EVAL-AD7451SDZ board as shown in software from the Analog Devices subfolder in the Figure 2. Screw the two boards together with the enclosed Programs menu. nylon screw-nut set to ensure the boards connect firmly together. 9V PSU...

  • Page 4: Software Installation Procedures

    EVAL-AD7450ASDZ/EVAL-AD7451SDZ 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\AD7450A/AD7451. There are two parts to the installation: • AD7450A/AD7451 evaluation board software installation •...
  • Page 5 Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 A summary of the installation is displayed. Click Next to Installing the EVAL-SDP-CB1Z System Demonstration Platform Board Drivers continue. After the installation of the evaluation board software is complete, a welcome window is displayed for the installation of the...
  • Page 6 EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide Click Install to confirm that you would like to install the Before using the evaluation board, you must restart your drivers. computer. A dialog box opens, giving you the following options: Restart, Shut Down, Restart Later. Click the appropriate button.

  • Page 7: Evaluation Board Setup Procedures

    Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 EVALUATION BOARD SETUP PROCEDURES Configuring the Evaluation and SDP Boards Connect the EVAL-AD7450ASDZ/EVAL-AD7451SDZ AD7450A/AD7451 evaluation board connects to the board to Connector A or Connector B on the EVAL-SDP- (EVAL-SDP-CB1Z) system demonstration board. The CB1Z board.

  • Page 8: Evaluation Board Hardware

    EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide EVALUATION BOARD HARDWARE AD7450A/AD7451 DEVICE DESCRIPTION POWER SUPPLIES AD7450A/AD7451 are 12-bit high speed, low power, Take care before applying power and signals to the evaluation successive approximation (SAR) analog-to-digital converters board to ensure that all link positions are as required by the with a fully differential/pseudo differential analog input.

  • Page 9: Link Configuration Options

    Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 LINK CONFIGURATION OPTIONS There are 12 link options that must be set for the required options must be set correctly to select the appropriate operating operating setup before using the evaluation board. The setup before using the evaluation board. The default link posi-...
  • Page 10 EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide Table 3. Link Options—Setup Conditions for AD7450A Link No. Position Function INPUT A is connected to single-ended to differential converter (U5-A). Inserted INPUT A input impedance is 51 Ω. INPUT B is connected to single-ended buffer (U10-B).

  • Page 11: Evaluation Board Circuitry

    Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 EVALUATION BOARD CIRCUITRY ANALOG INPUTS REFERENCE OPTIONS Three buffer circuits are available as follows. The reference source can be from an ADR431 ultralow noise XFET® voltage references with current sink and source capability Single-Ended to Differential (U2).

  • Page 12: Modes Of Operation

    EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide MODES OF OPERATION SERIAL INTERFACE STANDALONE MODE AD7450A/AD7451 use a high speed serial interface which EVAL-AD7450ASDZ/EVAL-AD7451SDZ may also be allows sampling rates up to 1 MSPS. For details on the operation of used without the EVAL-SDP-CB1Z. In this case, connect to...

  • Page 13: How To Use The Software For Evaluating The Ad7450A/ Ad7451

    Procedures and Evaluation Board Setup Procedures sections, follows: set up the system for data capture as follows: From the Start menu, select Programs > Analog Devices > Allow the Found New Hardware Wizard to run after the AD7450A/AD7451. The main software window appears.
  • Page 14 EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide CONTROL CONTROL CONTROL CURSOR ZOOMING PANNING NOTES 1. FOR DETAILS ABOUT THE AREAS HIGHLIGHTED IN RED, SEE THE OVERVIEW OF THE MAIN WINDOW SECTION. Figure 15. Setup Screen Rev. A | Page 14 of 28...

  • Page 15: Overview Of The Main Window

    Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 Part Information Box (Section 2) OVERVIEW OF THE MAIN WINDOW The Part Information box (labeled 2 in Figure 15) displays the The main window of the software is shown in Figure 15 and has generic being evaluated and is for informational purposes only.

  • Page 16: Generating A Waveform Analysis Report

    EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide GENERATING A WAVEFORM ANALYSIS REPORT Figure 18 illustrates the waveform capture tab for a 100 kHz sine wave input signal. The Waveform Analysis area (labeled 1 in Figure 18) reports the amplitudes recorded from the captured signal and the frequency of the signal tone.

  • Page 17: Generating A Histogram Of The Adc Code Distribution

    Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 DC Input GENERATING A HISTOGRAM OF THE ADC CODE DISTRIBUTION More commonly, the histogram would be used for dc testing, where the user tests the ADC for the code distribution for dc The Histogram tab can be used to perform ac testing or, more input and computes the mean and standard deviation, or commonly, dc testing.

  • Page 18: Generating A Fast Fourier Transform Of Ac Characteristics

    EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide GENERATING A FAST FOURIER TRANSFORM OF Click the FFT tab from the main window. Click Sample. AC CHARACTERISTICS Figure 20 shows the FFT tab. This feature tests the traditional As in the histogram test, raw data is captured and passed to the...

  • Page 19: Generating A Summary Of The Waveform, Histogram, And Fast Fourier Transform

    Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 GENERATING A SUMMARY OF THE WAVEFORM, HISTOGRAM, AND FAST FOURIER TRANSFORM Figure 21 shows the Summary tab. The Summary tab captures all the display information and provides it in one panel with a synopsis of the information, including key performance param- eters such as SNR and THD.

  • Page 20: Evaluation Board Schematic And Artwork

    EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide EVALUATION BOARD SCHEMATIC AND ARTWORK Figure 22. Schematic Page 1 Rev. A | Page 20 of 28...
  • Page 21 Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 Figure 23. Schematic Page 2 Rev. A | Page 21 of 28...
  • Page 22 EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide Figure 24. Schematic Page 3 Rev. A | Page 22 of 28...
  • Page 23 Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 Figure 25. Schematic Page 4 Rev. A | Page 23 of 28...
  • Page 24 EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide Figure 26. Schematic Page 5 Rev. A | Page 24 of 28...
  • Page 25 Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 Figure 27. Top Printed Circuit Board (PCB) Silkscreen Figure 28. Layer 1 Component Side View Rev. A | Page 25 of 28...
  • Page 26 EVAL-AD7450A/EVAL-AD7451 Evaluation Board User Guide Figure 29. Layer 2 Component Side View Figure 30. Layer 3 Component Side View Rev. A | Page 26 of 28...
  • Page 27 Evaluation Board User Guide EVAL-AD7450A/EVAL-AD7451 Figure 31. Layer 4 Component Side View Rev. A | Page 27 of 28...
  • Page 28 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.

This manual is also suitable for:

Eval-ad7451

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