Analog Devices AD7366 Manuel utilisateur

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 E VA L -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

E VA 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 precision band gap voltage

reference

Various link options are described in the Evaluation Board

Hardware section.

UG-408 Evaluation Board User Guide

Rev. A | Page 2 of 20

TABLE OF CONTENTS

Features .............................................................................................. 1

Online Resources.............................................................................. 1

Equipment Needed........................................................................... 1

General Description ......................................................................... 1

Table of Contents .............................................................................. 2

Revision History ............................................................................... 2

Functional Block Diagram .............................................................. 3

Quick Start Guide............................................................................. 4

Recommended Quick Start Steps............................................... 4

Evaluation Board Hardware ............................................................ 5

AD7366/AD7367 Device Description....................................... 5

Hardware Link Options............................................................... 6

Power Supplies .............................................................................. 8

Serial Interface .............................................................................. 8

SDP Limitations............................................................................ 8

Standalone Mode.......................................................................... 8

Analog Inputs.................................................................................8

Reference Options.........................................................................8

Sockets/Connectors ......................................................................8

Basic Hardware Setup ...................................................................9

Evaluation Board Software............................................................ 10

Software Installation .................................................................. 10

Launching the Software............................................................. 12

Software Operation .................................................................... 12

Description of User Software Panel ......................................... 14

WaveForm C apture .................................................................... 15

AC Testing–Histogram.............................................................. 16

DC Testing –Histogram ............................................................. 16

AC Testing–FFT Capture .......................................................... 17

Summary Tab.............................................................................. 18

Save File ....................................................................................... 19

Load File ...................................................................................... 19

REVISION HISTORY

9/12—Rev. 0 to Rev. A

Changed EVAL-AD7366CBZ and EVAL-AD7367CBZ to

E VA L-AD7366SDZ and EVAL-AD7367SDZ Throughout......... 1

Changes to Title ................................................................................ 1

Reorganized Layout............................................................Universal

Changes to Figure 1.......................................................................... 3

Added Quick Start Guide Section .................................................. 4

Replaced Evaluation Board Software Section ............................. 10

Removed Evaluation Board Schematics and Artwork Section 12

Added Figure 15 to Figure 19; Renumbered Sequentially ........ 13

6/07—Revision 0: Initial Version

Evaluation Board User Guide UG-408

Rev. A | Page 3 of 20

FUNCTIONAL BLOCK DIAGRAM

DOUTA

VSS

ADG3308

LEVEL

SHIFTER

VDRIVE

VIN VIN

BIPOLAR

INPUTS

SCLK

–

AD780

REF

INPUT

BUFFERS

CAP

VDRIVE

VCC

VDD

GND

ADP3303

+5V

ADP1613

±15V ADP1720

3.3V

OP AMP

SUPPLIES

AD8021

7V–9V

DOUTB

HARDWARE

SELECT

CNVST

BUSY

DGNDAGND

AD8021

VIN

VA1

VA2

VB1

VB2

AD7366/AD7367

EVAL-AD7366SDZ/EVAL-AD7367SDZ

BIASED_VIN1

RANGE0

RANGE1

REFSEL

ADDR

BIAS UP

CIRCUIT

EVAL-SDP-CB1Z

CONTROLLER

BOARD

BF527

DSP

INPUT

JACK

ON-BOARD

POWER SUPPLIES

AM1185

POWER

SEQUENCER

ADP2301

SDP 5V

SERIAL

INTERFACE

06704-001

Figure 1.

UG-408 Evaluation Board User Guide

Rev. A | Page 4 of 20

QUICK START GUIDE

RECOMMENDED QUICK START STEPS

To install the software, complete the following steps:

1. Install the AD7366/AD7367 software from the enclosed

CD. Ensure that the E VA L -SDP-CB1Z board is discon-

nected from the USB port of the PC while installing the

software. The PC must be restarted after the installation.

2. Connect the E VA L -SDP-CB1Z board to the E VA L -

AD7366SDZ/EVAL-AD7367SDZ board as shown in Figure 2.

3. Screw the two boards together with the enclosed nylon

screw-nut set to ensure the boards connect firmly together.

4. Connect the 9 V power supply adapter included in the

kit to connecter J702 on the EVAL-AD7366SDZ/

E VA L-AD7367SDZ board.

5. Connect the E VA L -SDP-CB1Z board to the PC via the

USB cable. For Windows® XP, you may need to search for

the EVAL-SDP-CB1Z drivers. Choose to automatically

search for the drivers for the EVAL-SDP-CB1Z board if

prompted by the operating system.

6. Launch the E VA L -AD7366SDZ/EVAL-AD7367SDZ

software from the Analog Devices subfolder in the

Programs menu.

06704-002

Figure 2. Hardware Configuration—Setting Up the Evaluation Board

Evaluation Board User Guide UG-408

Rev. A | Page 5 of 20

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., industrial CMOS process (iCMOS2), which is a tech-

nology platform combining the advantages of low and high

voltage CMOS. The iCMOS® process allows the AD7366/

AD7367 to accept high voltage bipolar signals in addition

to reducing power consumption and package size.

The AD7366/AD7367 can accept true bipolar analog input

signals in the ±10 V range, ±5 V range, and 0 V to 10 V range.

The AD7366/AD7367 have an on-chip 2.5 V reference that can

be disabled to allow the use of an external reference. If a 3 V

reference is applied to the DCAPA and DCAPB pins, the AD7366/

AD7367 can accept a true bipolar ±12 V analog input. Mini-

mum ±12 V VDD and VSS supplies are required for the ±12 V

input range.

Complete specifications for the AD7366/AD7367 are provided in

the AD7366/AD7367 data sheet, available from Analog Devices,

which should be consulted in conjunction with this user guide

when using the AD7366/AD7367 evaluation board.

UG-408 Evaluation Board User Guide

Rev. A | Page 6 of 20

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. The

default link positions are shown in Table 2 while the functions of these options are outlined in Table 1.

Table 1. Link Options

Link No. Function

LK1 Shorts input VA1 to ground when inserted.

LK2 Shorts input VA2 to ground when inserted.

LK3 Shorts input VB1 to ground when inserted.

LK4 Shorts input VB2 to ground when inserted.

SL1 VA1 Signal Selection.

Position A: Input signal is buffered by amplifier U3.

Position B: Input signal is passed directly to AD7366/AD7367 (via Resistor R4).

SL2 VA1 Signal Selection.

Position A: Input signal is buffered by amplifier U4.

Position B: Input signal is passed directly to AD7366/AD7367 (via Resistor R8).

SL3 VA1 Signal Selection.

Position A: Input signal is buffered by amplifier U5.

Position B: Input signal is passed directly to AD7366/AD7367 (via Resistor R12).

SL4 VA1 Signal Selection.

Position A: Input signal is buffered by amplifier U6.

Position B: Input signal is passed directly to AD7366/AD7367 (via Resistor R16).

LK5 AD780 Reference Output Voltage Selection.

Placed: VOUT = 3 V.

Unplaced: VOUT = 2.5 V.

LK6 DCAP_A Source Selection.

Position A: DCAP_A connected to LK9.

Position B: DCAP_A pin connected to external source via SMB socket DCAP-A.

LK7 DCAP_B Source Selection.

Position A: DCAP_B connected to LK9.

Position B: DCAP_B pin connected to external source via SMB socket DCAP-B.

LK8 BUSY Pin Connection to Level Shifter.

LK9 BIAS-UP Circuit Bias Voltage Selection. Bias voltage supplied to Pin 3 of U7 is sourced as follows:

Position A: DCAP_A (see LK6).

Position B: DCAP_B (see LK7).

Position C: U2 AD780 precision reference.

Ensure LK6 or LK7 is in the appropriate position.

LK11 VDRIVE Voltage Selection. Sets the voltage at the VDRIVE pin of the AD7366/AD7367.

Position A: VDRIVE connected to on-board 5 V.

Position B: Externally supplied voltage supplied via J1.

Position C: VDRIVE connected to on-board 3.3 V.

LK16

REFSEL Selection. Controls which internal or external reference voltage is used.

Position A: Internal reference voltage is selected.

Position B: External reference voltage is selected. This voltage may be supplies to DCAPA and/or DCAPB pins.

LK17

ADDR Selection. This selects which pair of inputs are to be sampled.

Position A: VA2 and VB2 are sampled.

Position B: VA1 nd VB1 are sampled.

LK18

LK19

Range Selection. Set up the analog input voltage range for all inputs.

LK18 (RANGE0) LK19 (RANGE1) Range Selected

A (1) A (1) Do not use.

A (1) B (0) ±5 V

B (0) A (1) 0 V to 10 V

B (0) B (0) ±10 V

Evaluation Board User Guide UG-408

Rev. A | Page 7 of 20

Link No. Function

LK23 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.

LK24 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.

LK27 BIAS-UP Voltage Selection Source: Select voltage source supplied to U9 Pin 3.

(Note that this will be ½ of the voltage selected by this link setting.)

Position A: Buffered voltage as selected by LK9. (See LK 9)

Position B: 0 V.

Position C: External voltage via SMB connector EXT_REF A/B.

LK1011VSS Selection.

Position A: VSS supplied from on-board supply.

Position B: VSS supplied from external source via J100 terminal 1.

LK1021

VDD Selection.

Position A: VDD supplied from on-board supply.

Position B: VDD supplied from external source via J100 terminal 3.

1 Both LK101 and LK102 should always be in corresponding positions.

Table 2. Link Options—Setup Conditions

Link No. Position Function

LK1 INSERTED Input VA1 shorted to ground.

LK2 INSERTED Input VA2 shorted to ground.

LK3 INSERTED Input VB1 shorted to ground.

LK4 INSERTED Input VB2 shorted to ground.

SL1 A Input signal is buffered by amplifier.

SL2 A Input signal is buffered by amplifier.

SL3 A Input signal is buffered by amplifier.

SL4 A Input signal is buffered by amplifier.

LK5 INSERTED VOUT = 3 V.

LK6 A DCAP_A connected to LK9.

LK7 A DCAP_A connected to LK9.

LK8 INSERTED

LK9 C Reference voltage sourced from AD780.

LK11 A VDRIVE pin 5 V.

LK16 A Internal reference voltage is selected.

LK17 B VA1 and VB1 are sampled.

LK18

LK19

5 V analog input range selected.

LK23 A DVCC supplied from on-board 5 V.

LK24 A AVCC supplied from on-board 5 V.

LK27 A Buffered voltage as selected by LK9.

LK101 A VSS supplied from on-board supply.

LK102 A VDD supplied from on-board supply.

UG-408 Evaluation Board User Guide

Rev. A | Page 8 of 20

POWER SUPPLIES

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.

When using the E VA L-AD7366SDZ/EVAL-AD7367SDZ in

conjunction with the E VA L-SDP-CB1Z board, connect the ac

transformer to connector J702. VCC, VDD, VSS, and VDRIVE

are generated on board. Alternatively, a bench power supply

may be connected to J700 to supply 7 V to 9 V.

Each supply is decoupled on the E VA L -AD7366SDZ/EVAL-

AD7367SDZ using 10 µF and 0.1 µF capacitors.

Table 3. External Power Supply Required

Power

Supply

Voltage

Range Purpose

VIN1

J700 or

J702

7 V to 9 V Supplies all on-board power

supplies, which generate all required

voltages to run the evaluation board

VDD

J100

12 V to

16.5 V

Amplifier +VDD

VSS

J100

−12 V to

−16.5 V

Amplifier −VSS

DVCC

J703

4.75 V to

5.25 V

ADC digital supply

AVCC

J704

4.7 V to

5.25 V

ADC analog supply

VDRIVE

2.7 V to

5.25 V

Supply voltage for the digital

interface circuitry

1When this is supplied, all other power supplies are available on board. If this

supply is not used, then all other supplies must be sourced from an external

source.

SERIAL INTERFACE

The AD7366/AD7367 uses a high speed serial interface,

which allows sampling rates up to 800000. For details on the

operation of the serial bus, refer to the AD7366/AD7367

data sheet.

The E VA L -AD7366SDZ/EVAL-AD7367SDZ communicates

with the EVAL-SDP-CB1Z board using level shifters. The

EVAL-SDP-CB1Z operates at a 3.3 V logic level. This allows

VDRIVE voltages that exceed 3.3 V to be used without

damaging the SDP interface.

Details of the serial interface can be found in the AD7366/

AD7367 data sheet.

SDP LIMITATIONS

Due to limitations in the speed of the EVAL-SDP-CB1Z in this

application, the maximum sample rate is limited to 800000

samples per second. This limitation does not apply when using the

E VA L-AD7366SDZ/EVAL-AD7367SDZ in standalone mode.

STANDALONE MODE

The evaluation board may also be used without the EVA L-SDP-

CB1Z. In this case, connection to the digital interface in made

via the SMB connectors or, if preferred, by the test points.

ANALOG INPUTS

The analog inputs on the E VA L -AD7366SDZ/EVAL-

AD7367SDZ are filtered and buffered by the AD8021, low

noise, high speed amplifier for 16-bit systems. The outputs from

these amplifiers are connected to the AD7366/AD7367 via a

low-pass RC filter network.

Alternatively, these buffers may be bypassed by solder link

jumpers.

REFERENCE OPTIONS

The reference source can be from the AD7366/AD7367 REFIN/

REFOUT pin or from an AD780. An external reference voltage

may also be applied to DCAP_A or DCAP_B SMB connectors

SOCKETS/CONNECTORS

The functions of the socket connectors are shown in Table 4.

Table 4. Socket Connector Functions

Socket Function

VA1 Input SMB for VA1

VA2 Input SMB for VA2

VB1 Input SMB for VB1

VB2 Input SMB for VB2

J1 VDRIVE terminal connectors

VIN Bipolar input

DCAPA/B_BUFF Buffered output of DCAPA/DCAPB

EXT REFA/B

Connection point for external reference to

bias up circuit

BIASED_VIN1 Biased version of signal at VIN socket

DCAP_A External input for DCAPA

DCAP_B External input for DCAPB

DOUT_A External serial data A output

DOUT_B

External serial data B output

CONVST External CONVST input

CS External CS input

BSY External serial data output

SCK External SCK input

J100 VSS and VDD screw terminal connectors

J700

7 V to 9 V bench supply screw terminal

connector

J702 7 V to 9 V dc transformer power connector

J703 AVCC screw terminal connectors

Evaluation Board User Guide UG-408

Rev. A | Page 9 of 20

BASIC HARDWARE SETUP

The AD7366/AD7367 evaluation board connects to the

(E VA L-SDP-CB1Z) system demonstration board. The

E VA L-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 EVA L-SDP-CB1Z

board.

Before connecting power, connect the E VA L -AD7366SDZ/

E VA L-AD7367SDZ board to connector A or connector B on

the E VA L -SDP-CB1Z board. Nylon screws are included in

the evaluation kit and can be used to ensure that the E VA L-

AD7366SDZ/EVAL-AD7367SDZ board and the EVAL-SDP-

CB1Z board are connected firmly together.

Once the E VA L -AD7366SDZ/EVAL-AD7367SDZ board and

the EVAL-SDP-CB1Z board are connected securely, connect

the power supplies on the evaluation board. The EVA L-

AD7366SDZ/EVAL-AD7367SDZ requires an external power

supply, which is included in the evaluation board kit. Connect

this power supply to the connector J702 on the EVA L-

AD7366SDZ/EVAL-AD7367SDZ board. Alternatively, a bench

power supply may be used to power the E VA L-AD7366SDZ/

E VA L-AD7367SDZ via J700. Further details on the required

power supplies connections and options are detailed in Table 4.

Before connecting the E VA L -SDP-CB1Z board to your PC,

ensure that the AD7366/AD7367 software has been installed

from the enclosed CD. The full software installation proce-

dure is detailed in the Evaluation Board Software section.

Finally, connect the E VA L -SDP-CB1Z board to the PC via

the USB cable enclosed in the E VA L -SDP-CB1Z kit. If using

Windows® XP platform, you may need to search for the

E VA L-SDP-CB1Z drivers. Choose to automatically search for

the drivers for the E VA L -SDP-CB1Z board if prompted by the

operating system.

UG-408 Evaluation Board User Guide

Rev. A | Page 10 of 20

EVALUATION BOARD SOFTWARE

SOFTWARE INSTALLATION

The E VA L -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 E VA L -SDP-CB1Z

board to the USB port of the PC. This ensures that the evalu-

ation system is correctly recognized when connected to the PC.

There are two parts to the installation

1. AD7366/AD7367 evaluation board software installation.

2. E VA L-SDP-CB1Z system demonstration platform board

drivers installation.

Figure 3 to Figure 7 show the separate stages of the evaluation

software. Figure 8 to Figure 12 show the separate steps to install

the E VA L -SDP-CB1Z drivers. Proceed through all of the install-

ation steps, allowing the software and drivers to be placed in the

appropriate locations. Only after the software and drivers have

been installed should you connect the E VA L-SDP-CB1Z board

to the PC.

06704-003

Figure 3. AD7366/AD7367 Install Window 1

06704-004

Figure 4. AD7366/AD7367 Install Window 2

06704-005

Figure 5. AD7366/AD7367 Install Window 3

06704-006

Figure 6. AD7366/AD7367 Install Window 4

06704-007

Figure 7. AD7366/AD7367 Install Window 5.

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