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Evaluation Board User Guide

UG-459

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 AD5686R/AD5686/AD5684R/AD5684

16-/12-Bit, Quad Channel Voltage Output DAC

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 12

FEATURES

Full-featured evaluation board for the AD5686R, AD5686,

AD5684R, and AD5684

On-board references

Various link options

PC control in conjunction with Analog Devices, Inc., System

Demonstration Platform (SDP)

PACKAGE CONTENTS

AD5686/AD5686R or AD5684/AD5684R evaluation board

CD includes

Self-installing software that allows users to control the

board and exercise all functions of the device

Electronic version of the AD5686R, AD5686, AD5684R, and

AD5684 data sheets

Electronic version of UG-459

GENERAL DESCRIPTION

This user guide details the operation of the evaluation board for

the AD5686R, AD5686, AD5684R, and AD5684 quad channel,

voltage output digital-to-analog converters (DACs).

The E VA L-AD5686RSDZ supports both the AD5686R and

AD5686, and the E VAL -AD5684RSDZ supports both the

AD5684R and AD5684.

The AD568x(R) is used in this user guide to refer to the AD5686R,

AD5686, AD5684R, and AD5684.

The evaluation board is designed to help customers quickly

prototype new AD568x(R) circuits and reduce design time.

The AD568x(R) operates from a single 2.7 V to 5.5 V supply.

The AD5686R and AD5684R incorporate an internal 2.5 V

reference to give an output voltage span of 2.5 V or 5 V. T h e

AD5686 and AD5684 require an external reference.

Full data on the AD568x(R) can be found in the appropriate data

sheet available from Analog Devices and should be consulted in

conjunction with this user guide when using the evaluation board.

The evaluation board interfaces to the USB port of a PC via the

SDP board. Software is supplied with the evaluation board to

allow the user to program the AD568x(R).

This evaluation board requires the E VA L -SDP-CB1Z board

(SDP-B controller board), which is available for order on the

Analog Devices website at www.analog.com.

EVALUATION BOARD BLOCK DIAGRAM

Figure 1.

LOGIC

DGND

AGND

EXT_REF

VOU TA

+6V

SDP CONNECTOR

EEPROM

REF

5V REF

3V REF

10 WAY

HEADER

VOUTB

VOUTC

VOUTD

VOUTA1

REF

VOUTB1

VOUTC1

VOUTD1

SPI

AD5686

AD5684

AD5686R

AD5684R

10954-001

Summary of content (12 pages)

PAGE 1
Evaluation Board User Guide UG-459 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 AD5686R/AD5686/AD5684R/AD5684 16-/12-Bit, Quad Channel Voltage Output DAC FEATURES The AD568x(R) is used in this user guide to refer to the AD5686R, AD5686, AD5684R, and AD5684.
PAGE 2
UG-459 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Software ...............................................................4 Package Contents .............................................................................. 1 Installing the Software ..................................................................4 General Description ..............................................
PAGE 3
Evaluation Board User Guide UG-459 EVALUATION BOARD HARDWARE POWER SUPPLIES LINK OPTIONS To use the evaluation board with the SDP board, a 6 V power supply is required, which is connected to Connector J3. The evaluation board can be used without the SDP board. In this case, the J1 and J2 connectors are used as the power supply inputs. A number of link options are incorporated in the evaluation board and must be set for the required operating conditions before using the board.
PAGE 4
UG-459 Evaluation Board User Guide EVALUATION BOARD SOFTWARE INSTALLING THE SOFTWARE 3. The evaluation kit for the AD568x(R) includes self-installing software on the CD. The software is compatible with Windows® XP, Windows Vista (32-bit) and Windows 7 (32-bit). If users need drivers for 64-bit operating systems, contact Linear.Apps@analog.com. Click Start > All Programs > Analog Devices > AD56x(R). Each of the AD5686R, AD5686, AD5684R, and AD5684 has its own version of software.
PAGE 5
UG-459 10954-004 Evaluation Board User Guide Figure 4. AD568x(R) Evaluation Board Software Main Window GAIN Control SOFTWARE OPERATION The software for the AD568x(R) allows the user to program values to the input and DAC registers of each DAC individually or collectively. The logic level of the GAIN pin is set externally by LK4 or LK5. To display the correct voltage, the gain selection must be set to match the level of the pin.
PAGE 6
UG-459 Evaluation Board User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK 10954-005 Figure 5. AD568x(R) Schematic (Page 1 of 2) Rev.
PAGE 7
Evaluation Board User Guide UG-459 10954-006 Figure 6. AD568x(R) Schematic (Page 2 of 2) Rev.
PAGE 8
Evaluation Board User Guide 10954-007 UG-459 10954-008 Figure 7. AD568x(R) Component Silkscreen Figure 8. AD568x(R) Top Side Routing Rev.
PAGE 9
UG-459 10954-009 Evaluation Board User Guide Figure 9. AD568x(R) Bottom Side Routing Rev.
PAGE 10
UG-459 Evaluation Board User Guide ORDERING INFORMATION COMPONENTS LIST Table 4.
PAGE 11
Evaluation Board User Guide UG-459 NOTES Rev.
PAGE 12
UG-459 Evaluation Board User Guide NOTES ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.