Page 1
Evaluation Board User Guide
UG-286
AD5545
AD8065
I-TO-V
V
OUT
A1
V
REF
ADR01
REFERENCE
SDICLKCS
AD8065
I-TO-V
V
OUT
B1
LDAC
RS
MSB
I
OUT
A
I
OUT
B
EVAL-SDP-CB1Z
USB
SPORT
GPIO
09901-001
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 AD5545 Current Output/Serial Input DAC
FEATURES
Full-featured evaluation board for the AD5545
Graphic user interface software for board control and
data analysis
Connector to E VAL-SDP-CB1Z system demonstration
platform board
Various power supply options
APPLICATIONS
Automatic test equipment
Instrumentation
Digitally controlled calibration
GENERAL DESCRIPTION
The AD5545 dual, 16-bit, current output, digital-to-analog
converter (DAC) is designed to operate from a single 5 V
supply with bipolar output up to ±15 V capability.
The applied external reference input voltage (V
the full-scale output current. Integrated feedback resistors (R
provide temperature-tracking, full-scale voltage outputs when
combined with an external I-to-V precision amplifier.
) determines
REF
A double-buffered serial data interface offers high speed,
3-wire, SPI-compatible, and microcontroller-compatible inputs
using serial data in (SDI), chip select (
signals. A common, level-sensitive, load DAC strobe (
input allows the simultaneous update of all DAC outputs from
previously loaded input registers. Additionally, an internal
power-on reset forces the output voltage to 0 at system turn-on.
An MSB pin allows system reset assertion (
registers to zero code when MSB = 0, or to half-scale code
when MSB = 1.
The AD5545 is packaged in the compact 16-lead TSS O P.
The E VA L -AD5544/45SDZ board is used in conjunction with
the EVA L -SDP-CB1Z system demonstration platform (SDP)
board available from Analog Devices, Inc., which is purchased
separately from the evaluation board. The USB-to-SPI
communication to the AD5545 is completed using the EVAL-
SDP-CB1Z Blackfin®-based demonstration board.
)
FB
CS
), and clock (CLK)
RS
) to force all
LDAC
)
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
Rev. A | Page 1 of 12
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UG-286 Evaluation Board User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Evaluation Board Software .............................................................. 3
Installing the Software ................................................................. 3
REVISION HISTORY
2/12—Rev. 0 to Rev. A
Replaced Evaluation Board Schematics and Artwork Section ... 5
8/11—Revision 0: Initial Version
Running the Software ...................................................................3
Using the Evaluation Board Software .............................................4
Example ..........................................................................................4
Evaluation Board Schematics and Artwork ...................................5
Evaluation Board Layout ..............................................................8
Related Links ......................................................................................9
Rev. A | Page 2 of 12
Page 3
Evaluation Board User Guide UG-286
09901-002
09901-003
EVALUATION BOARD SOFTWARE
Figure 2. Device Manager Showing the SDP Board Connected
INSTALLING THE SOFTWARE
The EVAL-AD5544/45SDZ evaluation kit includes the software
and drivers on CD. To install the software, follow these steps:
1. Install the software before connecting the SDP board to the
USB port of the PC.
2. Start the Windows operating system and insert the
EVAL-AD5544/45SDZ evaluation kit CD.
3. Download the E VA L -AD5544/45SDZ LabVIEW™ software.
The correct driver, SDPDriversNET, for the SDP board
should download automatically after LabVIEW is
downloaded, supporting both 32- and 64-bit systems.
RUNNING THE SOFTWARE
To run t h e evaluation board program, do the following:
1. Click Start/All Programs/Analog Devices/EVAL-
AD5544_45SDZ.
2. If the SDP board is not connected to the USB port when
the software is launched, a connectivity error displays (see
Figure 3). Simply connect the evaluation board to the USB
port of the PC, wait a few seconds, click Rescan, and follow
the instructions.
However, if the drivers do not download automatically,
the driver executable file can also be found in the Program
Files/Analog Devices folder. Follow the on-screen prompts
to install it.
4. After the installation of the software and drivers is complete,
plug the E VAL -AD5544/45SDZ into the SDP board and
the SDP board into the PC using the USB cable included
in the box.
5. When the software detects the evaluation board, proceed
through any dialog boxes that appear to finalize the
installation (Found New Hardware Wizard/Install the
Software Automatically and so on).
Figure 3.
Rev. A | Page 3 of 12
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UG-286 Evaluation Board User Guide
09901-004
09901-005
V5.2
536,65
384,16
10
536,65
−=×−=×−=
D
VV
REFOUT
V5.7
536,65
152,49
10
536,65
−=×−=×−=
D
VV
REFOUT
USING THE EVALUATION BOARD SOFTWARE
Once the software is launched, the main window pops up (see
Figure 4).
The desired 16-bit data loads and updates one of the four DACs
selected by the user within the AD5545 part.
There are two modes for loading the data. The first one is
synchronous mode where you can program each channel
separately but update them simultaneously. Program
high, load the channels and finally pull
LDAC
LDAC
low. The asynchronous mode enables you to load and update each channel
separately (the
The reset button,
LDAC
button is ignored in this case).
RS
, updates all channel outputs to zero scale
or midscale when MSB is pulled low or high.
EXAMPLE
LDAC
With
specify quarter scale (0x4000, 16384d) in the Input Data box
and click Load and Update DAC A. The expected output
obtained is
and RS tied high for asynchronous loading mode,
Figure 4. Main Window
The first step is to select the device to use which is connected
to the SDP board, in this case the AD5545, and click the OK
button.
After selecting the device, the AD5545 evaluation software
window appears (see Figure 5) to allow writing on the device.
When you change the loading synchronism mode to synchronous and write the value 0xC000 (49152d), you see no change
in the output until
LDAC
is tied low. The expected output for
this case is
Figure 5. AD5545 Evaluation Software Window
Rev. A | Page 4 of 12
Page 5
Evaluation Board User Guide UG-286
09901-006
VOUT A1
VOUT B1
SCLK1
SDIN1 /CS1
3
IOUTA
4
AGNDA
1
RFBA
2
VREFA
12
DGND
15
LDAC
16
SCLK
9
SDIN
10
RS
11
CS
14
MSB
13
VDD
7
VREFB
8
RFBB
5
AGNDB
6
IOUTB
U2
AD5545 CRUZ
/LDAC1
/RS1
MSB1
C9
5.6pF
VOUTA1
+
C10
10uF
C11
0.1uF
+
C12
10uF
C13
0.1uF
J3
C14
5.6pF
VOUTB1
+
C26
10uF
C31
0.1uF
+
C38
10uF
C39
0.1uF
J5
+
C27
10uF
C29
0.1uF
3+2
-
4
V-
7
V+
6
U1
AD806 5
3+2
-
4
V-
7
V+
6
U4
AD806 5
DGND
SCLK
SDIN
/CS
/LDAC
/RS
MSB
VDD
VSS
VDD
VSS
DVDD
DGND
VREFA
VREFB
EVALUATION BOARD SCHEMATICS AND ARTWORK
Figure 6. EVAL-AD5544/45SDZ Schematic Part A
Rev. A | Page 5 of 12
Page 6
UG-286 Evaluation Board User Guide
09901-007
VIN:Use this pintopower the SDP requires 4-7V 200mA
VIO:USEto set IOvoltage max draw 20mA
Board ID EEPROM(24LC64)must be onI2C bus 0, address isat userdiscretion
I2C bus 1 iscommon across bothconnectors on SDP - Pull up resistors required
BMODE1: Pull up witha 10Kresistor to set SDPto boot froma SPIFLASHonthedaughter board
(connected to blackfinGPIO- useI2C_0 first)
MainI2C bus (Connected toblackfinTWI - Pullupresistors not required)
CONNECTOR
STANDARD
SDP
PARALLEL
PORT
SPORT
SPI
I2C
GENERAL
INPUT/OUTPUT
TIMERS
*
*
*
*
*
***
*
***
*
*NConBLACKFINSDP
120NC119NC118
GND
117
GND
116
VIO(+3.3V)
115
GND
114
PAR_D22
113
PAR_D20
112
PAR_D18
111
PAR_D16
110
PAR_D15
109
GND
108
PAR_D12
107
PAR_D10
106
PAR_D8
105
PAR_D6
104
GND
103
PAR_D4
102
PAR_D2
101
PAR_D0
100
PAR_WR
99
PAR_INT
98
GND
97
PAR_A2
96
PAR_A0
95
PAR_FS2
94
PAR_CLK
93
GND
92
SPORT_RSCLK
91
SPORT_DR0
90
SPORT_RFS
89
SPORT_TFS
88
SPORT_DT0
87
SPORT_TSCLK
86
GND
85
SPI_SEL_A
84
SPI_MOSI
83
SPI_MISO
82
SPI_CLK
81
GND
80
SDA_0
79
SCL_0
78
GPIO177GPIO376GPIO5
75
GND
74
GPIO7
73
TMR_B
72
TMR_D
71NC70NC69
GND
68NC67NC66NC65NC64NC63
GND
62
UART_TX
61
BMODE1
60
RESET_IN
59
UART_RX58GND57NC56NC55NC54NC53NC52GND51NC50NC49TMR_C48TMR_A47GPIO6
46
GND45GPIO4
44
GPIO2
43
GPIO0
42
SCL_141SDA_140GND39SPI_SEL1/SPI_SS
38
SPI_SEL_C37SPI_SEL_B36GND35SPORT_INT
34
SPORT_DT3
33
SPORT_DT2
32
SPORT_DT1
31
SPORT_DR1
30
SPORT_DR2
29
SPORT_DR3
28
GND27PAR_FS126PAR_FS325PAR_A124PAR_A323GND22PAR_CS
21
PAR_RD
20
PAR_D119PAR_D318PAR_D517GND16PAR_D715PAR_D914PAR_D1113PAR_D1312PAR_D1411GND10PAR_D179PAR_D198PAR_D217PAR_D236GND5USB_VBUS
4
GND3GND2NC1VIN
J11
1A02A13A24
VSS
8
VCC
7
WP
6
SCL
5
SDA
U10
24LC64
USB_VBUS
3.3V_BF
SCLK
SDIN
/CS
/RS
3.3V_BF
/LDAC
MSB
SDO
Figure 7. EVAL-AD5544/45SDZ Schematic Part B
Rev. A | Page 6 of 12
Page 7
Evaluation Board User Guide UG-286
09901-008
VOUT A
VOUT B
VOUT C
VOUT D
+
C6
10uF
2
IOUTA
1
AGNDA
4
RFBA
3
VREFA
24
DGND
21
LDAC
9
SCLK10SDIN
6
RS
8
CS
5
MSB
7
VDD
12
VREFB
11
RFBB
14
AGNDB
13
IOUTB
26
VREFD
17
VREFC
27
IOUTD
28
AGNDD
25
RFBD
18
RFBC
15
AGNDC
16
IOUTC
23
NC
22
AGNDF
20
SDO
19
NC1
U5
AD5544
+
C16
10uF
C17
0.1uF
VREFA
+
C18
10uF
C19
0.1uF
C20
0.1uF
VREFB
C21
1.8pF
VOUTA
3+2
-
4
V-
7
V+
6
U7
AD8065
+
C22
10uF
C23
0.1uF
+
C24
10uF
C25
0.1uF
C28
1.8pF
VOUTB
3+2
-
4V-7
V+
6
U8
AD8065
+
C30
10uF
C32
0.1uF
+
C33
10uF
C34
0.1uF
C35
1.8pF
VOUTC
3+2
-
4V-7
V+
6
U9
AD8065
+
C36
10uF
C44
0.1uF
+
C45
10uF
C46
0.1uF
C47
1.8pF
VOUTD
3+2
-
4V-7
V+
6
U6
AD8065
+
C48
10uF
C49
0.1uF
+
C50
10uF
C51
0.1uF
VREFC
VREFD
BAC
D
LK2
J13
J14
J15
J16
/CS
/LDAC
SDO
SCLK SDIN
/RS
MSB
+
C4
10uF
+
C5
10uF
3
+VIN
5
TRIM
4
VOUT
2
GND
U3
ADR01BKSZ
J4-1
J4-2
C1
0.1uF
C2
0.1uF
C3
0.1uF
J1-1
J1-2
J1-3
DVDD
DVDD
VDD
VDD
VSS
VDD
VSS
VSS
VDD
VDD
VSS
VDD
VSS
MSB
/RS
/LDAC
SDO
/CS
SDIN
SCLK
VREFA
VREFB
Figure 8. EVAL-AD5544/45SDZ Schematic Part C
Rev. A | Page 7 of 12
Page 8
UG-286 Evaluation Board User Guide
09901-009
09901-010
EVALUATION BOARD LAYOUT
Figure 9. Silkscreen
Figure 10. Component Side
Rev. A | Page 8 of 12
Page 9
Evaluation Board User Guide UG-286
09901-011
Figure 11. Solder Side
RELATED LINKS
Resource Description
AD5545 Product Page, AD5545 Precision Dual 16-Bit DAC in compact TSSOP Packages
AD5544 Product Page, AD5544 Quad, Current-Output, Serial-Input 16-Bit DAC
ADR01 Product Page, ADR01 Ultracompact, Precision 10.0V Voltage Reference
AD8065 Product Page, AD8065 High Performance, 145 MHz FastFET™ Op Amp
EVAL-SDP-CB1Z Product Page, System Demonstration Platform
Rev. A | Page 9 of 12
Page 10
UG-286 Evaluation Board User Guide
NOTES
Rev. A | Page 10 of 12
Page 11
Evaluation Board User Guide UG-286
NOTES
Rev. A | Page 11 of 12
Page 12
UG-286 Evaluation Board User Guide
t. This Agreement is made by and between you (“Customer”) and Analog Devices, I nc. (“ADI”),
aluation Board. Customer shall inform ADI of any occurred damages or any
L BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS
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 e nergy ESD. Therefore, proper ESD precaution s should be taken to avoid per forma nce degra dation or loss of functionality.
Legal Terms and Conditions
By usin g the evaluation bo ard discussed herei n (together with any tools, component s documentation or support materi als, the “Evaluation Board”), you are agreeing to be bou nd by the terms and conditions set
forth below (“Agreement”) unless you have purchased the Evaluatio n 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 th e Agreement. Your u se of the Evaluation Board shall signify your acceptance of the Ag reemen
with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the term s a nd co ndition s of the Agreement, ADI hereby grant s to Customer a free, limited, per so nal, 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 Par ty”
includes any enti ty 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 Bo ard, are reserved by ADI. CONF IDENTIALITY. Thi s Agreement and the Evaluation Board shall all be considere d the confidenti al 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 RESTRIC TIONS. Customer may not disassemble, decompile or reverse engineer chips on the Ev
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 Evaluatio n Board. Modi fications to the Evaluation
Board must comply with applicable law, including but not limit ed to the RoHS Directive. TERMINATI ON. ADI may terminate this Agreem ent at any time upon giving wri tten 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 I MPLIED WARRANT Y OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMEN T OF INTELLECTUAL PROPERT Y RIGHTS. IN NO EVENT W ILL
ADI AND ITS LICE NSORS BE LIABLE FOR ANY I NCIDENTAL, SPECIAL, INDIRECT, OR CONSE QUENTIAL DAMAGES RESULTING FROM CUSTOME R’S POSSESSION OR US E OF THE EVALUATION BOARD, INCLUDING BUT
NOT LIMITE D TO LOST PROFITS, DE LAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHAL
($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 exp orts. GOVERNING LAW. This Agree ment shall be governed by and constru ed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any
legal action regarding this Agreement will be h eard in the state or federal courts having juris diction in Suffolk County, Massachusett s, and Customer hereby submits to the personal jurisdic tion and venue of such
courts. The United Natio ns Convention on Contracts for the International S ale of Goods shall no t apply to this Agreem ent and is expressly disclaimed.
©2011–2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG09901-0-2/12(A)
Rev. A | Page 12 of 12
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