Analog Devices EVAL-AD7761FMCZ User Manual
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Analog Devices EVAL-AD7761FMCZ 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
Evaluation Board for the

FEATURES

Full featured evaluation board for the
PC control in conjunction with the SDP-H1
system demonstration platform (EVAL-SDP-CH1Z)
PC software control and data analysis
Time and frequency domain
Standalone hardware capability

ONLINE RESOURCES

Evaluation kit contents
EVAL-AD7761FMCZ
Evaluation software CD for the
Documents needed
AD7761
data sheet
EVAL-AD7761FMCZ
Required software
AD7761
evaluation software

EQUIPMENT NEEDED

EVAL-AD7761FMCZ
EVAL-SDP-CH1Z
system demonstration platform
External 7 V to 9 V bench top power supply
DC/ac signal source (Audio Precision® or similar high
performance signal source)
USB cable
PC running Windows with USB 2.0 port
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Arrow.com.
Downloaded from
AD7761
256 kSPS, Sigma-Delta ADC with Power Scaling
AD7761
evaluation board
AD7761
user guide
evaluation board
EVAL-AD7761FMCZ User Guide
16-Bit, 8-Channel, Simultaneous Sampling,

GENERAL DESCRIPTION

The
EVAL-AD7761FMCZ
16-bit, 256 kSPS, analog-to-digital converter (ADC). A 7 V to
9 V external bench top supply is regulated to 5 V and 3.3 V to
supply the
AD7761
AD7761FMCZ
board connects to the USB port of the PC via
a connection to the
The
AD7761
evaluation software fully configures the
device register functionality and provides dc and ac time
domain analysis in the form of waveform graphs, histograms,
and associated noise analysis for ADC performance evaluation.
The
EVAL-AD7761FMCZ
user to evaluate the features of the ADC. The user PC software
executable controls the
EVAL-SDP-CH1Z
Full specifications for the
data sheet, which should be consulted in conjunction with this
user guide when working with the evaluation board.
Rev. 0 | Page 1 of 17
evaluation kit features the
and support components. The
EVAL-SDP-CH1Z
motherboard.
is an evaluation board that allows the
AD7761
over a USB cable through the
system demonstration platform (SDP).
AD7761
are available in the product
UG-949
AD7761
EVAL-
AD7761

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Summary of Contents for Analog Devices EVAL-AD7761FMCZ

  • Page 1: Features

    EVAL-AD7761FMCZ User Guide UG-949 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 AD7761 16-Bit, 8-Channel, Simultaneous Sampling, 256 kSPS, Sigma-Delta ADC with Power Scaling...

  • Page 2: Table Of Contents

    General Description ................. 1 Sockets/Connectors ..............9 Revision History ................2 Evaluation Board Setup Procedures ...........9 EVAL-AD7761FMCZ Quick Start Guide........3 Evaluation Board Software ............10 Analog Inputs and Front-End Circuit ........... 4 Software Installation Procedures..........10 Evaluation Board Hardware ............5 Setting up the System for Data Capture ........

  • Page 3: Eval-Ad7761Fmcz Quick Start Guide

    EVAL-AD7761FMCZ User Guide UG-949 EVAL-AD7761FMCZ QUICK START GUIDE To begin using the EVAL-AD7761FMCZ evaluation board, take Apply power to the EVAL-AD7761FMCZ evaluation board the following steps: via the supplied 9 V dc adapter at J1 (LK1 in Position B). Alternatively, supply an external voltage in the range of 7 V...

  • Page 4: Analog Inputs And Front-End Circuit

    UG-949 EVAL-AD7761FMCZ User Guide ANALOG INPUTS AND FRONT-END CIRCUIT As shown in Figure 2, the AIN0± to AIN7± analog inputs are ADR444 4.096 V low noise reference is used by default, accessible through either the SMBs or the terminal blocks.

  • Page 5: Evaluation Board Hardware

    EVAL-AD7761FMCZ User Guide UG-949 EVALUATION BOARD HARDWARE DEVICE DESCRIPTION Within these filter options, the user can select a decimation rate of 32, 64, 128, 256, 512, or 1024. AD7761 is an 8-channel, simultaneously sampling, Σ-Δ ADC. The AD7761 offers an ADC per channel and synchronized Embedded analog functionality on each ADC channel simplifies system design.
  • Page 6 UG-949 EVAL-AD7761FMCZ User Guide Link No. Default Option Description Pin 17: ST1/SCLK. Position A: SCLK in SPI mode. Position B: Channel 4 to Channel 7 in standby mode (pin mode). Position C: Channel 4 to Channel 7 enabled (pin mode).
  • Page 7 Position A: ADA4896-2. Position B: bypass the driver. Position C: amplifier driver board header via the J11 and J12 connectors. On-Board Connectors Table 2 provides information about the external connectors on the EVAL-AD7761FMCZ. Table 2. On-Board Connectors Connector Function Wall wart (dc plug) power supply voltage input. Apply 7 V to 9 V and GND (0 V) to this connector to power the evaluation board.

  • Page 8: Power Supplies

    UG-949 EVAL-AD7761FMCZ User Guide POWER SUPPLIES SERIAL CONFIGURATION INTERFACE The evaluation board requires that an external power supply, AD7761 is configured by the EVAL-SDP-CH1Z via a either a bench top supply or a wall wart (dc plug) supply, be 4-wire SPI interface. SL1 must be shorted to Position A for this applied to J1 or J3 (see Table 3 for more information).

  • Page 9: Sockets/Connectors

    EVAL-AD7761FMCZ User Guide UG-949 SOCKETS/CONNECTORS Table 4. Connector Details Connector Function Connector Type Manufacturer/Part No. Order No. Wall wart (dc plug) power supply voltage 2 mm dc power Kycon KLDX-SMT2-0202-A Mouser 806-KLDX- input. Apply 7 V. connector SMT20202A Apply voltage within data sheet specified...

  • Page 10: Evaluation Board Software

    UG-949 EVAL-AD7761FMCZ User Guide EVALUATION BOARD SOFTWARE SOFTWARE INSTALLATION PROCEDURES Select the location to install the software, and then click Next. Figure 4 shows the default installation locations, EVAL-AD7761FMCZ evaluation kit includes a CD which are displayed when the window opens. To select a containing software to be installed on the PC before using the different installation location, click Browse.
  • Page 11 EVAL-AD7761FMCZ User Guide UG-949 A summary of the installation is displayed. Click Next to For users running Windows 8.1 and Windows 10, an internet continue. connection is required. A dialog box appears such as the one shown in Figure 8. Click Download and install this feature to enable correct installation of the software.
  • Page 12 UG-949 EVAL-AD7761FMCZ User Guide Installing the System Demonstration Platform Board Click Install to confirm that you want to install the drivers. Drivers After the installation of the evaluation software is complete, a welcome window displays for the installation of the SDP drivers.

  • Page 13: 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, click Programs > Analog Devices > AD7761 Evaluation Software. The main window of the Allow the Found New Hardware Wizard to run after the software then displays.

  • Page 14: Software Operation

    UG-949 EVAL-AD7761FMCZ User Guide SOFTWARE OPERATION Figure 16. Evaluation Software Main Window Overview of the Main Window ADC Reset The main window contains the significant control buttons and Clicking ADC Reset in the Configuration tab sends a reset analysis indicators of the evaluation software.
  • Page 15 EVAL-AD7761FMCZ User Guide UG-949 Channel Enable/Disable Check Box FFT Tab The channel enable and disable check boxes, as shown in The FFT tab shows a frequency domain graph of the sampled Figure 18, individually enable channels for display and analysis.
  • Page 16 12 V power supply for the EVAL-SDP-CH1Z A particular register configuration can be saved to be loaded • 9 V power supply for the EVAL-AD7761FMCZ again at a later time. To sample and analyze the data, take the following steps: Connect the evaluation board to the SDP-H1 board.
  • Page 17 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.

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