Analog Devices EVAL-AD7177-2SDZ User Manual
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Analog Devices EVAL-AD7177-2SDZ User Manual

Analog Devices EVAL-AD7177-2SDZ User Manual

Evaluating the ad7177-2 32-bit, 10 ksps, sigma-delta adc with 100 µs settling and integrated analog input buffers
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Evaluating the
100 µs Settling and Integrated Analog Input Buffers

FEATURES

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

EVALUATION KIT CONTENTS

EVAL-AD7177-2SDZ
evaluation board
Evaluation software CD
7 V to 9 V ac-to-dc adapter
Plastic screw washer set

EQUIPMENT NEEDED

DC signal source
PC running Windows® XP to Windows 7
7V TO 9V
VIN
EXTERNAL ANALOG SIGNAL
CONDITIONING PLAYGROUND
AVDD1
ADA4528-2
ADA4528-2
IN-AMP
OPEN
CONFIGURED
CONFIG
CROSSPOINT
MULTIPLEXER
ON-BOARD
NOISE TEST
AIN0
AIN1
AIN3
AIN4
TO AD7177-2
TEMPERATURE
REFOUT PIN
FROM
ADP7104 LDO
AD8475
AMP
±10V INPUT
SURF BOARD
ADM660
OPTION
CONNECTOR
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
AD7177-2
AD7177-2

FUNCTIONAL BLOCK DIAGRAM

ADP7118
ADR445
5V LDO
5V VREF
REGCAPA
REF–
AVDD2
REFERENCE
1.8V
INPUT
LDO
BUFFERS
ANALOG
AVDD
INPUT
BUFFERS
Σ-Δ ADC
INPUT/OUTPUT
AVSS
AD7177-2
SENSOR
AVSS
GPIO0 GPIO1
–2.5V
AVSS
OPTION
ADP7182
–VE LDO
EVAL-AD7177-2SDZ User Guide
32-Bit, 10 kSPS, Sigma-Delta ADC with

GENERAL DESCRIPTION

The
EVAL-AD7177-2SDZ
a 32-bit, 10 kSPS analog-to-digital converter (ADC) with
integrated rail-to rail-analog input buffers, on-board power
supply regulation, and an external amplifier section for amplifier
evaluation. A 7 V to 9 V ac-to-dc adapter is regulated to 5 V
and 3.3 V, which supply the
The
EVAL-AD7177-2SDZ
port of a PC via the
The
AD7177-2
device functionality via a user accessible register interface and
provides dc time domain analysis in the form of waveform graphs,
histograms, and associated noise analysis for ADC performance
evaluation.
Full specifications for the
data sheet, which should be consulted in conjunction with this
user guide when using the evaluation board.
ADP7118
3.3V LDO
REF+
REFOUT
IOVDD
REGCAPD
BUFFERED
PRECISION
1.8V
REFERENCE
LDO
INT
REF
SERIAL
INTERFACE
AND
CONTROL
DIGITAL
FILTER
XTAL AND INTERNAL
CLOCK OSCILLATOR
CONTROL
CIRCUITRY
XTAL1
XTAL2/CLKIO
Figure 1.
Rev. 0 | Page 1 of 14
evaluation kit features the AD7177-2,
AD7177-2
and support components.
evaluation board connects to the USB
EVAL-SDP-CB1Z
SDP controller board.
evaluation software fully configures the
AD7177-2
are available in the product
ADP7104
5V LDO
USB
CS
SCLK
DIN
DOUT/RDY
POWER
SYNC
ERROR
SDP-B
DGND
UG-849
AD7177-2
ADSP-BF527
LED
STATUS

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Summary of Contents for Analog Devices EVAL-AD7177-2SDZ

  • Page 1: Features

    EVAL-AD7177-2SDZ evaluation kit features the AD7177-2, Full featured evaluation board for the AD7177-2 PC control in conjunction with the Analog Devices, Inc., a 32-bit, 10 kSPS analog-to-digital converter (ADC) with integrated rail-to rail-analog input buffers, on-board power EVAL-SDP-CB1Z system demonstration platform (SDP)

  • Page 2: Table Of Contents

    Functional Block Diagram .............. 1 Software Installation ..............8 Revision History ................2 Launching the Software ..............8 EVAL-AD7177-2SDZ Quick Start Guide ........3 Software Operation ................9 Recommended Quick Start Guide ..........3 Overview of the Main Window ...........9 Quick Start Noise Test ..............3 Configuration Tab (1) ..............9...

  • Page 3: Eval-Ad7177-2Sdz Quick Start Guide

    SDP-B board if prompted by the operating system. Launch the AD7177-2 evaluation software from the Analog Devices subfolder in the Programs menu. Figure 2. Hardware Configuration, Setting Up the EVAL-AD7177-2SDZ Evaluation Board Rev. 0 | Page 3 of 14...

  • Page 4: Evaluation Board Hardware

    Full details for the EVAL-SDP-CB1Z available at the SDP-B product page on the Analog Devices website. Table 1. Default Link and Solder Link Options Default Link...

  • Page 5: Sockets And Connectors

    3-pin, 3.81 mm pitch Contact External ac-to-dc adapter input for the DC power Kycon KLDX-SMT2- MOUSER 806- EVAL-AD7177-2SDZ, 7 V to 9 V connectors, 2 mm 0202-A KLDX-SMT20202A SMT power jack Analog input terminal block; wired Power socket block, Phoenix...

  • Page 6: Serial Interface

    UG-849 EVAL-AD7177-2SDZ User Guide SERIAL INTERFACE POWER SUPPLIES EVAL-AD7177-2SDZ evaluation board connects via the Power the evaluation board from the ac-to-dc adapter connected serial peripheral interface (SPI) to the Blackfin® ADSP-BF527 to J5, or from an external bench top supply applied to J3 or J9.

  • Page 7: Power Supply Configurations

    EVAL-AD7177-2SDZ User Guide UG-849 POWER SUPPLY CONFIGURATIONS Split Supply (Unregulated) Single Supply (Regulated) To set up the evaluation board, use the following procedure: There are two available power supply options for the single Move SL2, SL3 to Position B and SL5 to Position A.

  • Page 8: Evaluation Board Software

    Figure 3. AD7177-2 User Account Control Permission Dialog Box From the Start menu, click Programs, Analog Devices, You may receive a security warning as part of the SDP-B then EVAL-AD7177-2SDZ. The main window of the controller board driver installation. Click Install to proceed evaluation software displays (see Figure 7).

  • Page 9: Software Operation

    EVAL-AD7177-2SDZ User Guide UG-849 SOFTWARE OPERATION OVERVIEW OF THE MAIN WINDOW Functional Block Diagram (4) The functional block diagram of the ADC shows each of the The main window of the software displays the significant separate functional blocks within the ADC. Click one of the...

  • Page 10: Waveform Tab (8)

    UG-849 EVAL-AD7177-2SDZ User Guide WAVEFORM TAB (8) Channel Selection (15) Analysis Channel (9) The channel selection control allows you to choose which channels display on the data waveform. It also shows the analog The Noise Analysis section and Histogram Graph shows the...
  • Page 11 EVAL-AD7177-2SDZ User Guide UG-849 Figure 8. Waveform Tab of the AD7177-2 Evaluation Software Rev. 0 | Page 11 of 14...

  • Page 12: Histogram Tab (19)

    UG-849 EVAL-AD7177-2SDZ User Guide HISTOGRAM TAB (19) Histogram Graph and Controls (20 and 21) The data histogram graph shows the number of times each sample of the ADC output occurs. The control toolbar in the histogram graph allows you to zoom in on the data (see Figure 9). Click the x-axis and y-axis to change the scales on the graph (see Figure 9).

  • Page 13: Register Map Tab (22)

    EVAL-AD7177-2SDZ User Guide UG-849 REGISTER MAP TAB (22) Documentation (26) Register Tree (23) The Documentation field contains the documentation for the register of bit field selected in the register tree (labeled 23 in The register tree control shows the full register map in a tree Figure 10.
  • Page 14 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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