Evaluation Board User Guide
UG-275
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 the AD5428/AD5440/AD5447EB 8-Bit/10-Bit/12-Bit,
Parallel Input, Dual-Channel, Current Output DAC
FEATURES
GENERAL DESCRIPTION
Operates from dual ±12 V and +5 V supplies
On-board reference and output amplifiers
Direct hookup to printer port of PC
PC software for control of DAC
This user guide describes the evaluation board hardware and
software for the AD5428/AD5440/AD5447DACs.
The AD5428/AD5440/AD5447devices are CMOS 8-bit, 10-bit,
and 12-bit, current output, digital-to-analog converters (DACs).
They operate from a 2.5 V to 5.5 V power supply, making them
suited to battery-powered and other applications, such as
analog processing, waveform generators, and programmable
attenuators.
APPLICATIONS
Portable battery-powered applications
Waveform generators
Analog processing
Instrumentation applications
Programmable amplifiers and attenuators
Digitally controlled calibration
Programmable filters and oscillators
Composite video
Ultrasound
Gain, offset, and voltage trimming
On power-up, the internal register and latches are filled with
0s and the DAC outputs are at zero scale. As a result of being
manufactured on a CMOS submicron process, the parts offer
excellent 4-quadrant multiplication characteristics, with largesignal multiplying bandwidths of up to 10 MHz.
The applied voltage reference determines the full-scale output
current. An integrated feedback resistor (RFB) provides
temperature tracking and full-scale voltage output when
combined with an external I-to-V precision amplifier.
Full data on the DACs is available in the AD5428/AD5440/AD5447
data sheet, which should be consulted in conjunction with this
user guide when using the evaluation board.
FUNCTIONAL BLOCK DIAGRAM
VREF A VREF B
AD8065
DAC A
I TO V
AD5428/AD5440/
AD5447
DATA
BUFFER
8-/10-/12-BIT DAC
AD8065
DAC B
I TO V
VOUT B
VCC DGND VDD1 VDD AGND VSS
CS R/W
Figure 1.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
VOUT A
Rev. A | Page 1 of 12
09836-001
36-WAY CENTRONICS
CONNECTOR
ADR01
REFERENCE
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Evaluation Board User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1 Software ..............................................................................................4 Applications....................................................................................... 1 Setup................................................................................................4 General Description ......................................................................... 1 Installing and Using the Software ...............................................4 Functional Block Diagram .............................................................. 1 Evaluation Board Schematic ............................................................5 Revision History ............................................................................... 2 Evaluation Board PCB Layers......................................................6 Hardware ........................................................................................... 3 Ordering Information.......................................................................9 Evaluation Board Power Supplies............................................... 3 Bill of Materials..............................................................................9 Test Point Setup ............................................................................ 3 REVISION HISTORY
4/11—Rev. 0: Rev. A
Updated Format..................................................................Universal
Added Applications Section............................................................ 1
1/05—Revision 0: Initial Version
Rev. A | Page 2 of 12
Evaluation Board User Guide
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HARDWARE
The evaluation board consists of the DAC (AD5428, AD5440,
or AD5447), two AD8065 op amps, and a 10 V reference, the
ADR01. An external reference can also be applied via an SMB
input connector. Digital buffering is supplied on board. Though
excellent for dc performance, the bandwidth performance of the
combined DAC and amplifier is limited to approximately 8 MHz.
EVALUATION BOARD POWER SUPPLIES
The evaluation board requires ±12 V and +5 V supplies. The
+12 V (VDD) and −12 V (VSS) are used to power the output
amplifier. The +5 V is used to power the DAC (VDD1) and the
transceivers (VCC). All supplies are decoupled to ground with
10 μF tantalum and 0.1 μF ceramic capacitors.
TEST POINT SETUP
The test point pins are connected on the evaluation board to the
respective DAC, as shown in Table 1. For example, the least
significant bit (LSB) of the AD5440, DB0, is connected to the
DB2 test point.
Table 1. Test Point Setup
Part
AD5447
AD5440
AD5428
DB11
DB11
DB9
DB7
DB10
DB10
DB8
DB6
DB9
DB9
DB7
DB5
DB8
DB8
DB6
DB4
DB7
DB7
DB5
NC
Test Point
DB6
DB5
DB6
DB5
DB4
DB3
NC
NC
Rev. A | Page 3 of 12
DB4
DB4
DB2
NC
DB3
DB3
DB1
DB3
DB2
DB2
DB0
DB2
DB1
DB1
NC
DB1
DB0
DB0
NC
DB0
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Evaluation Board User Guide
SOFTWARE
The AD5428/40/47 dialog box opens, as shown in
Figure 2.
The evaluation kit includes a CD-ROM with self-installing
software to control the DAC. The software allows you to choose
which device type you have and to load each DAC, in the dualchannel setup, with a digital word.
SETUP
09836-002
The evaluation kit includes self-installing software on a
CD-ROM. The software is compatible with Windows®
95/97/2000/NT/XP.
If the setup file does not automatically run when you insert the
CD, you can run the setup.exe file from the CD-ROM.
3.
INSTALLING AND USING THE SOFTWARE
To operate the evaluation software:
1.
2.
Figure 2. Dialog Box
4.
Ensure that the Centronics cable connects the PC to the
evaluation board.
From the Analog Devices menu, click Start>All Programs
>Analog Devices>AD5428_40_47>AD5428_40_47
Evaluation Software.
For older PCs, click Start>Programs > Analog Devices>
AD5428_40_47->AD5428_40_47 Evaluation Software
5.
6.
7.
8.
Rev. A | Page 4 of 12
To select the resolution of the part on the evaluation board,
click the appropriate button under Select Device.
Click either DAC A or DAC B. DAC A and DAC B are
both configured to give an output voltage range of 0 V to
−10 V.
In the Enter DAC Word [Hex] field, type a data-word to
the DAC. You must enter the 8-bit/10-bit/12-bit word in
hexadecimal format.
Press Enter on the keyboard to load the DAC and update
the selected output.
From the drop-down Printer Port menu, select the printer
port address from the list of available addresses.
Click File>Exit.
C21
0.1μF
P1–36
P1–9
P1–8
1
3
2
DGND
VCC
Y3
Y2
Y1
Rev. A | Page 5 of 12
Figure 3. Evaluation Board Schematic
P1–19
P1–20
P1–21
P1–22
P1–23
P1–24
P1–25
P1–26
P1–27
P1–28
P1–29
P1–30
P1–14
P1–1
P1–31
74139
E
A1
A0
Y0
U6-A
P1–4
P1–3
P1–2
P1–5
P1–7
P1–6
7
6
5
4
DGND
15
13
14
E
A1
A0
Y3
Y2
Y1
Y0
U6-B
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
CEBA
B7
B6
B5
B4
B3
B2
B1
B0
LEAB
OEAB
VCC
23
15
16
17
18
19
20
21
22
14
13
CEBA
B7
B6
B5
B4
B3
B2
B1
B0
14
LEAB
13
OEAB
P2–5
P2–6
P2–4
P2–1
P2–2
P2–3
23
15
16
17
18
19
20
21
22
U5 VCC 24
74ABT543
LEBA
OEBA
A0
A1
A2
A3
A4
A5
A6
A7
CEAB
GND
C2
0.1μF
74ABT543
OEBA
A0
A1
A2
A3
A4
A5
A6
A7
CEAB
GND
U4 VCC 24
1
LEBA
C19
0.1μF
C17
0.1μF
C15
0.1μF
C13
0.1μF
C1
0.1μF
+
+
+
+
C20
10μF
C18
10μF
C16
10μF
C14
10μF
J4
VSS
VCC
VDD1
AGND
VDD
J3
CS
RW
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
C3
10μF
+
VDD
AD5447
C4
0.1μF
5 TRIM
3 +V
IN
1
U2
4
22
2
3
24
23
21
2
GND
VDD
DB0
DB1
DB2
DB3
DB4
RFBB
DB5
IOUTB
DB6
DB7
DB8
RFBA
DB9
DB10
IOUTA
DB11
DAC_A/B
CS
VREFA
R/W
VREFB
DGND
AGND
DGND
5
18
17
16
15
14
13
12
11
10
9
8
7
6
19
20
U1
C6
0.1μF
+
C5
10μF
B
1
VOUT 4
EXT
REF B
EXT
REF A
C8
0.1μF
LK1 A
J5
J2
TP3 TP2
VDD1
C7
1.8pF
C22
1.8pF
VDD
U3
3
7
4
V–
V+
2
VSS
VDD
U7
3
7
4
V–
V+
2
VSS
C12
0.1μF
+
C11
10μF
6
C10
0.1μF
+
C9
10μF
C26
0.1μF
+
C25
10μF
6
C24
0.1μF
+
C23
10μF
TP1
TP4
J1
J6
O/P A
O/P B
09836-003
VCC
Evaluation Board User Guide
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EVALUATION BOARD SCHEMATIC
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Evaluation Board User Guide
09836-004
EVALUATION BOARD PCB LAYERS
Figure 4. Component Placement Diagram
Rev. A | Page 6 of 12
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09836-005
Evaluation Board User Guide
Figure 5. Component-Side PCB Layer
Rev. A | Page 7 of 12
Evaluation Board User Guide
09836-006
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Figure 6. Solder-Side PCB Layer
Rev. A | Page 8 of 12
Evaluation Board User Guide
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ORDERING INFORMATION
BILL OF MATERIALS
Table 2.
Name
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
CS, DB0 to DB11
J1 to J6
J2
J3
J4
J5
J6
LK1
P1
P2
RW
TP1 to TP4
U1
U2
U3
U4, U5
U6
U7
Each Corner
Part Description
X7R ceramic capacitor
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
NPO ceramic capacitor
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic Capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
NPO ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
Tantalum capacitor—Taj Series
X7R ceramic capacitor
Red Test Point
SMB socket
SMB socket
SMB socket
SMB socket
SMB socket
SMB socket
3-pin header (2 × 2)
36-pin centronics connector
6-pin terminal block
Red test point
Red test point
AD5428/AD5440/AD5447
ADR01
AD8065
74ABT543
74139
AD8065
Rubber stick-on feet
Value
0.1 μF
0.1 μF
10 μF, 20 V
0.1 μF
10 μF, 10 V
0.1 μF
1.8 pF
0.1 μF
10 μF, 20 V
0.1 μF
10 μF, 20 V
0.1 μF
0.1 μF
10 μF, 20 V
0.1 μF
10 μF, 20 V
0.1 μF
10 μF, 20 V
0.1 μF
10 μF, 20 V
0.1 μF
1.8 pF
10 μF, 20 V
0.1 μF
10 μF, 20 V
0.1 μF
Rev. A | Page 9 of 12
Tolerance (%)
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
Stock Code
FEC 499-675
FEC 499-675
FEC 197-427
FEC 499-675
FEC 197-130
FEC 499-675
FEC 721-876
FEC 499-675
FEC 197-427
FEC 499-675
FEC 197-427
FEC 499-675
FEC 499-675
FEC 197-427
FEC 499-675
FEC 197-427
FEC 499-675
FEC 197-427
FEC 499-675
FEC 197-427
FEC 499-675
FEC 721-876
FEC 197-427
FEC 499-675
FEC 197-427
FEC 499-675
FEC 240-345 (pack)
FEC 310-682
FEC 310-682
FEC 310-682
FEC 310-682
FEC 310-682
FEC 310-682
FEC 511-791&528-456
FEC 147-753
FEC 151-792
FEC 240-345 (pack)
FEC 240-345 (pack)
AD5428YRU/AD5440YRU/AD5447YRU
ADR01AR
AD8065AR
Fairchild 74ABT543CMTC
CD74HCT139M
AD8065AR
FEC 148-922
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Evaluation Board User Guide
NOTES
Rev. A | Page 10 of 12
Evaluation Board User Guide
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NOTES
Rev. A | Page 11 of 12
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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 personal jurisdiction and venue of such courts. The
United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.
©2005–2011 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG09836-0-4/11(A)
Rev. A | Page 12 of 12