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Single-Channel, 12-/14-/16-Bit, Serial Input,

Voltage Output DAC Evaluation Board

EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB

Rev. 0

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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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FEATURES

Full featured evaluation board for

AD5662

AD5660

AD5640

AD5620

On-board reference

On-board ADC for voltage readback

Various link options

Direct hook up to USB port of PC

PC software for control of DACs

GENERAL DESCRIPTION

This data sheet describes the evaluation board for the 12-bit

AD5620, 14-bit AD5640, 16-bit AD5660, and 16-bit AD5662

single-channel DACs.

The AD5620/AD5640/AD5660 have a maximum output voltage

span of 5 V derived from an internal on-chip reference voltage

of 2.5 V.

The

AD5662 has a maximum output voltage span of 5 V

derived from an external reference voltage of 5 V. The reference

voltage for this evaluation board is derived from the AD780

which has an output voltage of 2.5 V or 3 V. Therefore, for

purpose of this evaluation, 3 V is the maximum output voltage

span of the

AD5662 using the AD780 reference.

When using the evaluation board, refer to this data sheet along

with the data sheets for the AD56xx family of parts available

from Analog Devices, Inc.

The evaluation board interfaces to the USB port of an IBM-

compatible PC. The software available with the evaluation

board allows the user to easily program the AD56xx .

Summary of content (12 pages)

PAGE 1
Single-Channel, 12-/14-/16-Bit, Serial Input, Voltage Output DAC Evaluation Board EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB FEATURES GENERAL DESCRIPTION Full featured evaluation board for AD5662 AD5660 AD5640 AD5620 On-board reference On-board ADC for voltage readback Various link options Direct hook up to USB port of PC PC software for control of DACs This data sheet describes the evaluation board for the 12-bit AD5620, 14-bit AD5640, 16-bit AD5660, and 16-bit AD5662 single-channel DACs.
PAGE 2
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB TABLE OF CONTENTS Features .............................................................................................. 1 Software Operation .......................................................................4 General Description ......................................................................... 1 Schematics ..........................................................................................5 Revision History ....................
PAGE 3
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB OPERATING THE AD56XX EVALUATION BOARD POWER SUPPLIES LINK OPTIONS The AD56xx evaluation board can be powered from the USB port. This is the default setup. It can also be powered by an external supply using the J6 and J7 power connectors. A number of link and switch options on the evaluation board should be set for the required operating setup before using the board. Table 1 lists the default link options.
PAGE 4
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB EVALUATION BOARD SOFTWARE SOFTWARE INSTALLATION The AD56xxEB evaluation kit includes self-installing software on CD-ROM. The software is compatible with Windows® 2000 and Windows® XP. If the setup file does not run automatically when you insert the CD, run the setup.exe file directly from the CD. 1. After the installation from the CD-ROM has completed, connect the AD56xx evaluation board to the USB port using the cable supplied. 2.
PAGE 5
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB SCHEMATICS 3.3V 3.3V K LED ADP3303-3.3 C24 + 10µF OUT1 OUT2 ERROR NR GND 4 DGND 1 2 6 3 C19 22pF 0603 U7 R9 0R C18 22pF 0603 C17 22pF 0603 DGND DGND 42 44 J10 USB-MINI-B VBUS D– D+ IO GND SHIELD DGND 54 1 2 3 4 5 9 8 33 34 35 36 37 38 39 40 DGND ADC_CS DIN SCLK SYNC 1 2 13 14 3.
PAGE 6
Figure 4. Schematic of AD56xx Circuitry Rev.
PAGE 7
05540-006 EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB 05540-007 Figure 5. Component Placement Drawing Figure 6. Component Side PCB Drawing Rev.
PAGE 8
05540-008 EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB Figure 7. Solder Side PCB Drawing Rev.
PAGE 9
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB ORDERING INFORMATION COMPONENT LISTING Table 3.
PAGE 10
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB NOTES Rev.
PAGE 11
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB NOTES Rev.
PAGE 12
EVAL-AD5620EB/EVAL-AD5640EB/EVAL-AD5660EB/EVAL-AD5662EB NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB05540-0-6/06(0) Rev.