Datasheet UG-144 Datasheet (ANALOG DEVICES)

Evaluation Board User Guide

UG-144

One Technology Way • P. O . Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel : [phone] • Fax : [phone] • www.analog.com

Evaluation Board for Quad, 16-Bit, Serial Input, Voltage Output DAC

FEATURES

Full featured evaluation board for the AD5064
On-board reference
On-board ADC for voltage readback
Various link options
Direct hookup to USB port of PC
PC software for control of DACs

EQUIPMENT NEEDED

IBM-compatible PC
Cable (supplied in kit)

SOFTWARE NEEDED

AD5064 evaluation software (supplied in kit)

DOCUMENTS NEEDED

AD5064
AD7476
ADG738
ADG774
REF195

GENERAL DESCRIPTION

This user guide describes the evaluation board for the AD5064
quad 16-bit digital-to-analog convertor (DAC). The AD5064
operates from a single 4.5 V to 5.5 V supply. There is an external
reference, which is the REF195 on this evaluation board.

Complete specifications for the AD5064 are found in the data
sheet available from Analog Devices, Inc., and should be con­sulted in conjunction with this user guide when using the
evaluation board.

The evaluation board interfaces to the USB port of an IBM®­compatible PC. Software is available with the evaluation board
allowing the user to easily program the AD5064.

EVALUATION BOARD CONNECTION DIAGRAM

5V VOLTAGE

B

REF

V

AD5064

REFERENCE

C

D

REF

REF

V

V

V

A

OUT

V

B

OUT

V

C

OUT

V

D

OUT

ADG738

8:1 MUX

ADC

07866-001

POWER SUPPLY INPUTS

USB CONNECTOR

CONTROLLER

CY7C68013

EXT REF A
EXT REF B
EXT REF C
EXT REF D

SMB CONNECTORS

A

REF

V

I/O

Figure 1.

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 12

UG-144 Evaluation Board User Guide

TABLE OF CONTENTS

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

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

Software Needed ............................................................................... 1

Documents Needed .......................................................................... 1

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

Evaluation Board Connection Diagram ........................................ 1

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

Evaluation Board Hardware ............................................................ 3

Power Supplies .............................................................................. 3

REVISION HISTORY

6/10—Revision 0: Initial Version

Link Options ..................................................................................3

Evaluation Board Software ...............................................................4

Installing the Software ..................................................................4

Software Operation .......................................................................4

Evaluation Board Schematics and Artwork ...................................5

Ordering Information .......................................................................9

Bill of Materials ..............................................................................9

Related Links ......................................................................................9

Rev. 0 | Page 2 of 12

Evaluation Board User Guide UG-144

EVALUATION BOARD HARDWARE

POWER SUPPLIES

To power the EVAL-AD5064EBZ, supply 5.5 V between the
AVDD and AGND inputs for the analog supply of the AD5064.
Alternatively, placing Link 6 in Position B powers the analog
circuitry from the USB port (default setting).

Both AGND and DGND inputs are provided on the board. The
AGND and DGND planes are connected at one location close to
the AD5064. To avoid ground loop problems, do not connect
AGND and DGND elsewhere in the system.

Each supply is decoupled to the relevant ground plane with
10 μF and 0.1 μF capacitors. Each device supply pin is also
decoupled with a 10 μF and 0.1 μF capacitor pair to the relevant
ground plane.

Table 2. Link Functions

Link No. Function

LK1 to LK4

LK5 This link selects the AVDD power supply source for the analog circuitry.
Position A selects J6 as the AVDD analog circuitry power supply source.
Position B selects the 5 V power supply source as the AVDD analog circuitry power supply source (see LK6).
LK6 This link selects the 5 V power supply source for the digital circuitry.
Position A selects J7 as the 5 V digital circuitry power supply source.
Position B selects the USB port as the 5 V digital circuitry power supply.
LK7

Position A selects control by the PC via the USB port.
Position B selects control by an external source via the SMB connectors (J1 to J5).
LK8

Position A allows normal operation of the switch.
Position B resets the switch.
LK9 This link selects the AVDD power supply source for the REF195.
Position A selects J6 as the REF195 power supply source.
Position B selects the AVDD as the REF195 power supply source (see LK5).
LK10 This link selects the DAC power supply source.
Position A selects the AVDD as the DAC power supply source.
Position B selects an external source via SMB Connector EXT_VDD as the power supply source.
LK11 This link selects the DAC voltage source.
Position A selects the DAC power supply source as the DAC voltage source (see LK10).
Position B selects the on-board REF195 5 V reference as the DAC voltage source.
LK12 This link selects whether the part power-on resets to zero or midscale.
Position A ensures that the POR of the part resets to midscale.
Position B ensures that the POR of the part resets to zero scale.
LK13 to LK16 These links select the reference sources for V
Position A selects an external reference via the SMB connectors (EXT_REF_A, EXT_REF_B, EXT_REF_C, and EXT_REF_D).
Position B selects the on-board REF195 5 V reference as the reference source.

These links connect the V
monitor the DAC output value using the on-board AD7476 ADC.

This link selects whether the AD5064 evaluation board is controlled by the PC via the USB port or by an external
source via the SMB connectors (J1 to J5).

This link sets the RESET

A to V

OUT

pin on the ADG738.

D pins of the AD5064 to the input/output pins of the ADG738 demultiplexer to

OUT

Rev. 0 | Page 3 of 12

LINK OPTIONS

A number of link and switch options on the evaluation board

be set for the required operating setup before using the

should
board. The functions of these link options are described in
detail in Tabl e 2. The default setup is for control by the PC via
the USB port. The default link options are listed in Tab le 1.

Table 1. Link Options Setup for PC Control (Default)

Link No. Option

LK1 to LK4 Inserted
LK5 B
LK6 B
LK7 A
LK8 A
LK9 B
LK10 A
LK11 A
LK12 A
LK13 to LK16 B

REF

A to V

REF

D.

UG-144 Evaluation Board User Guide

EVALUATION BOARD SOFTWARE

INSTALLING THE SOFTWARE

The AD5064 evaluation kit includes self-installing software on CD.
The software is compatible with Microsoft® Windows® 2000 and
Windows XP.

To ensure that the board is correctly recognized when con­nected to the PC, install the software before connecting the
evaluation board to the USB port of the PC.

1. Start the Windows operating system and insert the CD.

2. The installation software should launch automatically. If it

does not, run the setup.exe file directly from the CD.

3. After installation from the CD is complete, power up the

AD5064 evaluation board as described in the Power Supplies
section. Connect the evaluation board to the USB port of
the PC using the cable that is supplied.

4. When the software detects the evaluation board, proceed

through any dialog boxes that appear until the installation
is completed.

SOFTWARE OPERATION

1. From the Analog Devices menu, click Start > All

Programs > Analog Devices > AD5064 > AD5064
Evaluation Software.

For older PCs, click Start > Programs > Analog Devices
> AD5064 > AD5064 Evaluation Software.

The main window of the AD5064 evaluation software opens, as
shown in Figure 2. The data programmed into the 32-bit input
shift register is displayed. You can select the command bits, the
address bits, and the data bits by clicking the appropriate option
button under each section.

Command Bits

1. To select a command to program the part, click the drop-

down menu button under the Select Control Function
section and select the appropriate option from the menu.
For example, to program all DAC outputs with full scale,
click Write to and Update DAC Channel n.

2. Click All DACs in the Address Bits section.

3. In the Data section, enter the data in hexadecimal value.

4. To execute, click Wr ite to P art. You must click Writ e to

Part to execute all writes to the part.

Other commands that the AD5064 evaluation software allows
you to program include the power-down DAC bits, the clear code
register bits, and the register bits by clicking the corresponding
option button under the Select Control Function section and
then clicking Write to Part . You can also set the register bits for
the required mode of operation. Consult the AD5064 data sheet
for details.

Hardware Pins

LDAC

To set
checkbox,
screen dedicated to the hardware pins. This command executes

immediately; therefore, there is no need to click Wri te t o Pa r t.

and

LDAC

CLR

high or low, click the corresponding

CLR

or

, located on the right portion of the

ADC

The voltage output on each DAC channel is monitored using
the on-board ADC. To read the output voltage, click the OK
button under the Sample ADC section and select which channel
to read (A, B, C, or D) under the ADC section.

7866-002

Figure 2. AD5064 Evaluation Software Main Window

Rev. 0 | Page 4 of 12

Evaluation Board User Guide UG-144

EVALUATION BOARD SCHEMATICS AND ARTWORK

07866-003

Figure 3. Schematic of Controller Circuitry

Rev. 0 | Page 5 of 12

UG-144 Evaluation Board User Guide

07866-004

A

B

C

OUT

OUT

V

REF

V

D

REF

V

C

REF

V

B

REF

V

A

DD

V

V

D

OUT

OUT

V

V

U1

Figure 4. Schematic of AD5064 Circuitry

Rev. 0 | Page 6 of 12

Evaluation Board User Guide UG-144

07866-005

Figure 5. Component Placement Drawing

Figure 6. Component Side PCB Drawing

Rev. 0 | Page 7 of 12

07866-006

UG-144 Evaluation Board User Guide

07866-007

Figure 7. Solder Side PCB Drawing

Rev. 0 | Page 8 of 12

Evaluation Board User Guide UG-144

ORDERING INFORMATION

BILL OF MATERIALS

Table 3.

Quantity Reference Designator Description Supplier/Number

1 U7 ADP3303AR-3 Analog Devices
1 U1 AD5064BRUZ-2 (3) Analog Devices
1 U9 24LC01 FEC 9758070
2 U2, U3 ADG774BRQ Analog Devices
1 U5 AD7476ART Analog Devices
1 U6 ADG738BRU Analog Devices
1 U4 REF195ES Analog Devices
1 U8 CY7C68013-CSP Embassy CY7C68013-56LFC
1 Y1 24 MHz crystal FEC 569-872
9 VOUTA to VOUTD; J1 to J5 Gold 50 Ω SMB jack FEC 365 1228
1 J10 USB Mini B FEC 476-8309
1 J6 Power connectors FEC 151-786
1 J7 Power connectors FEC 151-785
1 D1 LED FEC 359-9681
5 C4, C5, C11, C18, C35 10 μF 10 V tantalum capacitor (TAJ-B package) FEC 197-130
2 C26, C27 22 pF (0603 package) FEC 722-005
22

1 C24 2.2 μF (0603 package) Digikey 490-1552-1-ND
1 C10 1 μF (0603 package) FEC 318-8840
4 C13 to C16 0805 package (not inserted)
1 R1 1.5 Ω FEC 758-267
4 R2 to R5 Wire wrap pin (not inserted)
1 R6 1 kΩ (0603 package) FEC 911-239
2 R7, R8 100 kΩ (0603 package) FEC 911 471
2 R11, R12 2.2 kΩ (0603 package) FEC 911-276
1 R10 10 kΩ (0603 package) FEC 911-355
1 R9 0 Ω (0603 package) FEC 772-227
5 LK1 to LK4, LK10 Header (2 × 1 pin) FEC 511-705
8 LK5 to LK9, LK11 to LK13 Header (3 × 1 pin) FEC 511-717
21 T1 to T21 Testpoint FEC 873-1144

C1 to C3, C6 to C8, C12, C17, C19 to C23, C25,
C28 to C34, C36

0.1 μF (0603 package) FEC 882-0023

RELATED LINKS

Resource Description

AD5064 Product page, AD5064 Fully Accurate 16-Bit VOUT nanoDAC™ Quad, SPI Interface, 4.5 V to 5.5 V in TSSOP
AD7476 Product page, AD7476 1 MSPS, 12-Bit ADC in 6-Lead SOT-23
ADG738 Product page, ADG738 CMOS, Low Voltage, Single 8-to-1 Multiplexer, Serially Controlled Matrix Switch
ADG774 Product page, ADG774 2.2 Ω, Wide Bandwidth, Low Voltage Quad SPDT Switch
ADP3303 Product page, ADP3303 High Accuracy anyCAP® 200 mA Low Dropout Linear Regulator
REF195 Product page, REF195 Precision Micropower, Low Dropout, Low Voltage Reference

Rev. 0 | Page 9 of 12

UG-144 Evaluation Board User Guide

NOTES

Rev. 0 | Page 10 of 12

Evaluation Board User Guide UG-144

NOTES

Rev. 0 | Page 11 of 12

UG-144 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.

Legal Terms and Conditions

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. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including
ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any
occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of
Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
submits to the pers onal jurisdiction and venu e of such courts. The United Nations Conventi on on Contracts for the Internation al Sale of Goods shall not apply to this Agreement and is expressly disclaimed.

©2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG07866-0-6/10(0)

Rev. 0 | Page 12 of 12