Page 1
Evaluation Board User Guide
UG-255
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 AD8403 Digital Potentiometer
FEATURES
Full-featured evaluation board for the AD8403
Various test circuits
Various ac/dc input signals
PC control via a separately purchased system demonstration
platform (SDP)
PC software for control
PACKAGE CONTENTS
EVAL-AD8403SDZ board
CD that includes
Self-installing software that allows users to control the
board and exercise all functions of the device
Electronic version of the AD8403 data sheet
Electronic version of the UG-255 user guide
GENERAL DESCRIPTION
This user guide describes the evaluation board for evaluating the
AD8403, a quad-channel 256-position, digital potentiometer
The AD8403 supports a single-supply 2.7 V to 5.5 V operation,
making the device suited for battery-powered applications and
many other applications, offering a ±1% channel-to-channel
matching tolerance.
In addition, the AD8403 uses a versatile SPI serial interface,
allowing speeds of up to 50 MHz.
The EVAL-AD8403SDZ can operate in single-supply mode and
incorporates an internal power supply from the USB.
Complete specifications for the AD8403 part can be found in
the AD8403 data sheet, which is available from Analog Devices,
Inc., and should be consulted in conjunction with this user
guide when using the evaluation board.
DIGITAL PICTURE OF EVALUATION BOARD WITH SYSTEM DEMONSTRATION PLATFORM
SYSTEM DEMONSTRATION
PLATFORM
EVAL-AD8403SDZ
09712-001
Figure 1.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 16
Page 2
UG-255 Evaluation Board User Guide
TABLE OF CONTENTS
Features.............................................................................................. 1
Package Contents.............................................................................. 1
General Description ......................................................................... 1
Digital Picture of Evaluation Board with System
Demonstration Platform.................................................................. 1
Revision History ............................................................................... 2
Evaluation Board Hardware............................................................ 3
Power Supplies ..............................................................................3
Link Options ................................................................................. 3
REVISION HISTORY
2/11—Revision 0: Initial Version
Test Circuits ...................................................................................4
Evaluation Board Software...............................................................6
Installing the Software..................................................................6
Running the Software ...................................................................6
Software Operation.......................................................................7
Evaluation Board Schematics and Artwork...................................8
Ordering Information.................................................................... 14
Bill of Materials........................................................................... 14
Related Links................................................................................... 15
Rev. 0 | Page 2 of 16
Page 3
Evaluation Board User Guide UG-255
EVALUATION BOARD HARDWARE
POWER SUPPLIES
The EVAL-AD8403SDZ supports using single power supplies.
The evaluation board can be powered either from the SDP port
or externally by the J1-1 and J1-2 connectors, as described in
Tabl e 1 .
All supplies are decoupled to ground using 10 μF tantalum and
0.1 μF ceramic capacitors.
Table 1. Maximum and Minimum Voltages of the Connectors
Connector No. Label Voltage
J1-1 EXT Analog positive power supply, VDD.
VDD
J1-2 GND Analog ground.
Table 3. Link Functions
Link No. Power Supply Options
A25 VDD This link selects one of the following as the positive power supply:
5 V (from SDP).
3.3 V (from SDP).
EXT (external supply from the J1-1 connector).
A24 VSS This link should be connected to GND (analog ground).
For single-supply operation, it is 2.7 V
to 5 V.
LINK OPTIONS
Several link and switch options are incorporated in the
evaluation board and should be set up before using the board.
Tabl e 2 describes the positions of the links to control the
evaluation board by a PC, via the SDP board, using the EVALAD8403SDZ in single-supply mode. The functions of these link
options are described in detail in Tab l e 3 through Table 6.
Table 2. Link Options Setup for SDP Control (Default)
Link No. Option
A25 3.3 V
A24 GND
Rev. 0 | Page 3 of 16
Page 4
UG-255 Evaluation Board User Guide
A
V
V
TEST CIRCUITS
The EVAL-AD8403SDZ incorporates several test circuits to
evaluate the AD8403 performance.
DAC
RDAC1 can be operated as a digital-to-analog converter (DAC),
as shown in Figure 2.
– V
2
– V
2
AC + DC
SS
VDD
V
DD
RDAC1
DC
SS
GND
A1
R34
W1
R35
W1
BUF_W1
B1
W1_BUF
09712-002
A1
B1
Figure 2. DAC
Connects Terminal A1 to
(VDD − VSS)/2
Connects Terminal W1 to an
output buffer
Connects Terminal B1 to
(VDD − VSS)/2
Connects Terminal B1 to
analog ground
R
WB1
VVV ×−=
)(
B1
A1
(1)
256
and VB0 in Equation 1.
A0
V
DD
V
DD
Tabl e 4 shows the options available for the voltage references.
Table 4. DAC Voltage References
Terminal Link Options Description
A1 A20 AC + DC
VDD Connects Terminal A1 to VDD
W1 BUF_W1
B1 A21 DC
GND
The output voltage is defined in Equation 1.
OUT
where:
R
is the resistor between the W1 and B1 terminals.
WB1
V
is the voltage applied to the A1 terminal (A20 link).
A1
V
is the voltage applied to the B1 terminal (A21 link).
B1
However, by using the R34 and R35 external resistors, the user
can reduce the voltage of the voltage references. In this case, use
the A1 and B1 test points to measure the voltage applied to the
A0 and B0 terminals and recalculate V
AC Signal Attenuation
RDAC1 can be used to attenuate an ac signal, which must be
provided externally using the AC_INPUT connector, as shown
in Figure 3.
–
DD
SS
2
C_INPUT
1µF
V
DD
– V
2
SS
AC + DC
AC
RDAC1
DC
GND
A1
R34
W1
R35
W1
BUF_W1
R36
B1
W1_BUF
A1
B1
Figure 3. AC Signal Attenuator
Depending on the voltage supply rails and the dc offset voltage
of the ac signal, various configurations can be used as described
in Tabl e 5 .
Table 5. AC Signal Attenuation Link Options
Link Options Conditions
A20 AC + DC No dc offset voltage.
AC signal is outside the voltage supply rails
due to the dc offset voltage.
DC offset voltage ≠ VDD/2.1
AC All other conditions.
A21 DC Use in conjunction with ac + dc link.
GND All other conditions.
1
Recommended to ensure optimal total harmonic distortion (THD) performance.
The signal attenuation is defined in Equation 2.
⎛
⎜
nAttenuatio log20)dB( (2)
×=
⎜
R
⎝
⎞
+
RR
WWB1
⎟
⎟
−− ENDTOEND
⎠
where:
R
is the resistor between the W1 and B1 terminals.
WB1
is the wiper resistance.
R
W
R
END-TO-END
is the end-to-end resistance value.
In addition, R36 can be used to achieve a pseudologarithmic
attenuation. To do so, adjust the R36 resistor until a desirable
transfer function is found.
09712-003
Rev. 0 | Page 4 of 16
Page 5
Evaluation Board User Guide UG-255
A
A
Signal Amplifier
RDAC2 can be operated as an inverting or noninverting signal
amplifier supporting linear or pseudologarithmic gains. Tab le 6
shows the available configurations.
The noninverting amplifier with linear gain is shown in Figure 4,
and the gain is defined in Equation 3.
R
WB2
G
where R
+=1
WB2
(3)
R38
is the resistor between the W2 and B2 terminals.
R41
R38
2.7kΩ
W2
W2
1.7kΩ
RDAC2
V
OUT
C1
OAVOUT
10nF
B2
R42
B2
09712-004
V
IN
Figure 4. Linear Noninverting Amplifier
The noninverting amplifier with pseudologarithmic gain is
shown in Figure 5, and the gain is defined in Equation 4.
R
WB2
G +=1
(4)
R
AW2
where:
is the resistor between the W2 and B2 terminals.
R
WB2
R
is the resistor between the A2 and W2 terminals.
AW 2
R41
IN
R43
1.7kΩ
V
OUT
C1
W2
W2
A2
RDAC2
B2
B2A2
10nF
R42
OAVOUT
09712-005
V
Figure 5. Pseudologarithmic Noninverting Amplifier
R43 and R42 can be used to set the maximum and minimum
gain limits.
The inverting amplifier with linear gain is shown in Figure 6,
and the gain is defined in Equation 5.
Note that the input signal, V
R
WB2
G
where R
WB2
(5)
−=
R38
is the resistor between the W2 and B2 terminals.
R38
2.7kΩ
V
IN
W2
W2
RDAC2
Figure 6. Linear Inverting Amplifier
, must be negative.
IN
R41
1.7kΩ
C1
10nF
B2
B2
R42
V
OUT
OAVOUT
09712-006
Output Buffers
RDAC2 and RDAC3 can be connected to an output buffer as
shown Figure 7 and Figure 8.
3
RDAC3
RDAC4
W3
A3
W3
B3
B3
BUF_3
Figure 7. RDAC3 Output Buffer
4
W4
A4
W4
B4
B4
BUF_4
VOUT3
VOUT4
09712-007
09712-008
Figure 8. RDAC4 Output Buffer
Table 6. Amplifier Selection Link Options
Amplifier Gain Link Label V
Range
IN
Noninverting Linear A27 LINEAR 0 V to VDD
A29 NON-INV
A30 NON-INV
Pseudologarithmic A27 PSEUDOLOG 0 V to VDD
A29 NON-INV
A30 NON-INV
Inverting Linear A27 LINEAR −VDD to 0 V
A29 INV
A30 INV
Rev. 0 | Page 5 of 16
Page 6
UG-255 Evaluation Board User Guide
EVALUATION BOARD SOFTWARE
INSTALLING THE SOFTWARE
The EVAL-AD8403SDZ evaluation kit includes evaluation
board software provided on a CD. The software is compatible
with Windows® XP, Windows Vista, and Windows 7 (both
32 bits and 64 bits).
Install the software before connecting the SDP board to the USB
port of the PC to ensure that the SDP board is recognized when
it is connected to the PC.
1.
Start the Windows operating system and insert the CD.
2.
The installation software opens automatically. If it does
not, run the
3.
After installation is completed, power up the evaluation
setup.exe file from the CD.
board as described in the Power Supplies section.
4.
Connect the EVAL-AD8403SDZ into the SDP board and the
SDP board into the PC using the USB cable included in the
evaluation kit.
5.
When the software detects the evaluation board, follow the
instructions that appear to finalize the installation.
RUNNING THE SOFTWARE
To run the program, do the following:
1.
Click Start > All Programs > Analog Devices > AD8403
>
AD8403 Eval Board. To uninstall the program, click
Start > Control Panel > Add or Remove Programs >
AD8403 Eval Board.
2.
If the SDP board is not connected to the USB port when
the software is launched, a connectivity error displays (see
Figure 9). Simply connect the evaluation board to the USB
port of the PC, wait a few seconds, click
Rescan, and follow
the instructions.
Figure 9. Pop-Up Window Error
The main window of the EVAL-AD8403SDZ evaluation
software then opens, as shown in Figure 10.
09712-009
09712-010
Figure 10. EVAL-AD8403SDZ Evaluation Board Software Main Window
Rev. 0 | Page 6 of 16
Page 7
Evaluation Board User Guide UG-255
SOFTWARE OPERATION
The main window of the EVAL-AD8403SDZ software is
divided into the following sections:
RDAC4,
RDAC1, RDAC2, RDAC3, and RDAC4 can be used to update
the RDAC registers by entering a desirable value into the text
box and clicking
and REGISTER ACCESS.
WRITE.
RDAC1, RDAC2, RDAC3,
REGISTER ACCESS has the following options:
• SEND DATA is a customized I
sent by manually switching the scroll bars from 0 to 1 or
from 1 to 0, as desired, and then clicking
In addition, the scroll bars are updated on each write
transfer, showing the command sent to the part.
• SHUTDOWN connects the wiper to the B terminal and
open circuits the A terminal. When the button is clicked,
the bit toggles automatically.
• EXIT closes the program but does not reset the part.
2
C data-word that can be
SEND DATA.
Rev. 0 | Page 7 of 16
Page 8
UG-255 Evaluation Board User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK
CLK
U/D
DACSEL
MODE
CS
VDD
10
11
13CS14
U/D12CLK
VDD
U/D
VDD
5
0x5E
VDD
U3
A1
AD5172_SOCKET
10
A1
I2C
VDD
0x58
20
VDD
AD5254
U7
A1
1W12B13
DACSEL
U5
AD5222
W1
1B12A13
A1
B1
W1-12
SDA
SCL
6
7
SCL
SDA
A2
W1
8
1B12
3W29
B1
A2
W1-10
W2-10
SDA
SCL
9
14
SDA
SCL
A2
W2
6
9
MODE
A2
A2
4
GND
B2
B2
4
AD0
7B28
8
5W26
W2-12
16
AD1
11A312
VSS
4
VSS
GND
B2
7
B2
SDA
SCL
VDD
5
0x5E
VDD
U1
AD5243
A1
W1
10
A1
W1-11
WP
5
WP
B3
W3
13
17A418
4
6
7
SCL
SDA
GND
A2
B2
8
1B12
3W29
B1
A2
B2
W2-11
VSS
VDD
1
10
15
VSS
DGND
B4
W4
19
0x5A
AD5252
09712-011
VDD
SCL
SDA
WP
VSS
8
7
2
3
9
10
11
WP
SCL
VDD
U9
A1
4W15B16
VSS
SDA
AD0
AD1
DGND
W3
12A313B314
A1
B1
A2
B2
A3
B3
A4
W1-8
W2-8
W3-8
B4
W4-8
A1
B1
A2
W1-9
B2
W2-9
MULTICHANNEL
RDY
SDO
DIN
SCLK
12
VDD
U12
W1
W1-6B1W2-6
SYNC-6
WP
RESET
VSS
VDD
4
1
2
3
13WP14
15
16
DIN
RDY
SDO
8B17
GND
SCLK
SYNC
RESET
V1
B210W211V2
6
9
B2V1V2
12
5
VSS
VDD
U11
AD5235
6A18B17
A1
WP
RESET
RDY
SDO
DIN
SCLK
SYNC-7
VSS
4
5
1
2
3
13WP14
15
16
DIN
RDY
SDO
W1
B1
W1-7
VSS
GND
SCLK
SYNC
RESET
B210W211A2
9
A2
B2
W2-7
RDY
SDO
DIN
SCLK
SYNC-5
WP
DIN
SCLK
SYNC-4
VDD
5
VDD
U2
AD5162
A1
A1
8
SYNC
W1
10
W1-4B1W2-4
4
6
7
DIN
GND
SCLK
B2
1B12
3W29
B2
VDD
12
16
VDD
U10
AD5232
6A18B17
A1
RESET
VSS
4
5
1
2
3
13WP14
15
DIN
RDY
SDO
W1
B1
W1-5
VSS
GND
SCLK
SYNC
RESET
B210W211A2
9
A2
B2
W2-5
VDD
ADN2850
SPI
O1O2RDY
SDO
SCLK
DIN
SHDN
RESET
SCLK
SDO
DIN
SYNC-1
VDD
11
16
9
VDD
DGND
AD8403
U6
A1
A1
W1-1
10
15
SHDN
RESET
AGND2
W2
AGND1
A2
1
2B23
4
24B122W123
21
B1
A2
B2
W2-1
12
13
14
DIN
SDO
SCLK
SYNC
AGND3
W3
B3
W4
A3
18
20
19
A3
B3
W3-1
B4
7A48
6
17
A4
W4-1
SYNC-2
SCLK
DIN
SDO
RESET
SHDN
12
NC
22A423
A4
VSS
VDD
3
11
GND
VSS
B4
W4
24
B4
W4-2
19
VDD
AD5233
U4
7A18W19
A1
1
O1
W1-3
23
24
O2
RDY
B110A211W2
B1
A2
VDD
1NC2
7
8
9
10
6
4
VDD
SYNC
AD5204
AGND4
A1
U8
5
A1
W1-2
B4
5
DIN
SCLK
A2
19
16B117W118
B1
A2
NC
SDO
SHDN
RESET
A3
B2
W2
21
20
W2-2
13B314W315
B2
A3
B3
W3-2
SYNC-3
RESET
WP
VSS
2
3
4
DIN
SDO
SCLK
A3
B2
12
15
B2
A3
W2-3
5
6
20WP21
22
SYNC
W3
14
W3-3
VSS
GND
RESET
A4
B3
13
16B417W418
B3
A4
B4
W4-3
Figure 11. Schematic of Multiboard Digital Potentiometers
Rev. 0 | Page 8 of 16
Page 9
Evaluation Board User Guide UG-255
ARA
U15-C
AC_INPUT
VDD
8
V+
V-
4
VSS
VDD
R39
C3
R40
VSS
3
2
U15-A
+
-
AD8652AR
1
A20
VDD
A
AC + DC
B
AC
C
R34
A1
A1
DAC + FLOATING DAC + BW
AD8403- 1
W1-1
W1-2
W1-3
W1-4
W1-5
W1-6
W1-7
W1-8
W1-9
W1-10
W1-11
W1-12
AD5204- 1
AD5233- 1
AD5162- 1
AD5232- 1
ADN2850 -1
AD5235- 1
AD5254- 1
AD5252- 1
AD5172
AD5243- 1
AD5222- 1
BUF-W1
W1
W1
R36
PSEUDOLOGATTENUATOR
A21
6
5
A
B
C
AD8652AR
+
U15-B
VDD
R3
R4
VSS
3
+
U14-A
2
-
AD8618ARZ
B1
R35
7
W1_BU F
1
B1
B1
VSS
09712-012
Figure 12. Schematic of Multiboard RDAC0 Circuits
INVERTINGAND NON-INVERTING WITH LINE
AD8403 -2
W2-1
AD5204 -2
W2-2
W2-3
W2-4
W2-5
W2-6
W2-7
W2-8
W2-9
W2-10
W2-11
W2-12
AD5233 -2
AD5162 -2
AD5232 -2
ADN2850-2
AD5235 -2
AD5254 -2
AD5252 -2
AD5172 -2
AD5243 -2
AD5322 -2
W2
W2
VIN
J2-1
GND
J2-2
Figure 13. Schematic of Multiboard RDAC1 Circuits
ND PS EUDO-LOGGAIN
INVERTING
BA
NON-INVERTING
BA
A29
PSEUDOLOG
BA
A27
LINEAR
INVERTING
NON-INVERTING
AD86 18ARZ
B2
R42
VOUT
7
CIRCUIT CONNECTION
OAVOUT
09712-013
R41
A30
A2
R43
R38
A2
DIGIPOT
C1
5
+
U14-B
6
-
B2W2
Rev. 0 | Page 9 of 16
Page 10
UG-255 Evaluation Board User Guide
VDD
C2
0.1uF
C25
0.1uF
C24
10uF
+
POWER-SUPPLIES
B
C
A
POWER-SUPPLY
A25
EXT VDD
+5V
+3.3V
J1-1
+5V
+3.3V
VSS
C4
0.1uF
C26
0.1uF
C27
10uF
+
A
B
A24
GND
GND
EXT VSS
J1-2
J1-3
V1
V1
O1
O1
DIGITAL PINS CURRENT MONITOR
09712-014
V2
V2
O2
O2
A4
VOUT4
A4
BUF-4
W4
B4
14
AD8618ARZ
U14-D
+
-
13
12
A3
B4
VOUT3
A3
BUF-3
W3
B3
B3
8
AD8618ARZ
U14-C
+
-
9
10
CHANNELS 3 AND 4
AD8403-4
AD5204-4
AD5233-4
AD5254-4
AD8403-3
AD5204-3
AD5233-3
W4-1
W4-2
W4-3
W4-8
AD5254-3
W3-1
W3-2
W3-3
W3-8
Figure 14. Schematic of AD8403 Power Supplies and Other Channels
Rev. 0 | Page 10 of 16
Page 11
Evaluation Board User Guide UG-255
VSS
CS
RESET
SYNC
WP
SHDN
RDY
SDA
SCL
DACSEL
U/D
MODE
+3.3V
30B029B128B227B326B425B524B623B722B821B920
33
34
SEL
VDD
VDD VSS
A16
A17
SHDN_BF
RESET_BF
SCL_BF
SHDN_BF
RESET_BF
A10
A12
A13
SDO_BF
DIN_BF
SDO_BF
A6
MUX-A2|U/D
MUX-A 2|U/D
MUX-A1|DACSEL
A11
WP_BF
SYNC_BF
WP_BF
SYNC_BF
A7
A8
CLK
RDY|MODE
CLK_BF
RDY|MODE
VCC
BE231BE1
GND
ADG3247 -C S P
35A036A137A238A339A440
32
11
U13
LEVEL TRANSLATOR
+3.3V
DIN_BF DIN
SCLK_BF SCLK
2k2
R1
R2
SDO_BF SDO
SYNC-1
SYNC-2
14
13
15
S2
S1
A22
VDD
ADG658
MUX - CS
16
VDD
A51A62A73A84A95A106A117A128A139A1410A15
SCL_BF
WP_BF
SDA_B F
SYNC_BF
SHDN_ BF
2k2
RDY_BF
SYNC-3
SYNC-4
SYNC-5
SYNC-6
1
12
S5
S4
S3
S6
A2
D
A16EN
9
3
11A010
SYNC RESET_BF
MUX-A 0|CS
MUX-A 2|U/D
MUX-A1|DACSEL
B1019B1118B1217B1316B1415B15
MUX-A 0|CS
RDY|MODE
MUX-A 2|U/D
MUX-A1|DACSEL
SYNC-7
2
4S85
S7
CLK_BF CLK
VSS8GND
7
EXTER N ALCONTROL CONNE C T ION
TESTPOINTS
MUX-A 0|CS
+5V
+5V
+3V3
+3.3V
DGNDAGND
A14
A18
SCL_BF
SDA_BF
SDA_BF
A9
DIN_BF
SCLK_BF
SCLK_BF
A5
A23
MUX-A 1|DACSEL
MUX-A 0|CS
09712-015
WP_BF
CLK_BF
RDY|MODERESET_BF
+5V
1
2
3
5
6
11
17
23
28
N/C
GND4GND
VIN_4-12V
J22
GND
7V_UNREGOUT
7V_UNREGOUT
118
119
120
+3.3V
36
GND
GND
GND
GND
GND
5V_USB
POWER SUPPLY
GND
GND
GND
GND
GND
V_IO(3.3V)
GND
86
93
98
109
104
115
116
117
SDP BOARD CONNECTOR AND EEPROM
12
15
18
21
22
103
PAR_D519PAR_D320PAR_D1
PAR_D4
24
PAR_CS
PAR_A325PAR_A1
PAR_RD
PORT
PAR_INT
PAR_WR
PAR_D0
PAR_D2
99
100
101
102
+5V
R37
40
46
52
58
GND
GND
GND
GND
GND
PAR_D916PAR_D7
PAR_D1413PAR_D1314PAR_D11
PARALLEL
GND
GND
GND
GND
GND
63
69
75
81
PAR_D6
PAR_D8
PAR_D1 0
PAR_D1 2
PAR_D1 5
105
106
107
108
110
SDO_BF
26
31
35
37
39
90
91
92
PAR_FS327PAR_FS1
94
1K
SPORT_IN T
SPORT _RFS
SPORT _DR1
SPORT _DR0
SPORT_RSCLK
SPORT
SPORT _DT1
SPORT_TSCLK88SPORT _DTO89SPORT_TFS
PAR_CLK95PAR_FS 296PAR_A097PAR_A2
32
87
DIN_BF
SCLK _BF
SYNC_BF
LED
D6
+3.3V
41
SPI_SEL_B38SPI_SEL_C
SPI_ SEL1/_SS
SPI
SPI_ CLK83SPI_ MISO84SPI_ MOSI85SPI_ SEL_A
82
SDA_B F
5
6
7WP8
U25
SCL
SDA
VCC
VSS
24LC01
1A02A13A24
MUX-A1|DACSEL
7
29
42
43
47
48
59
SCL_1
GPIO044GPIO245GPIO4
GPIO6
SDA_1
I2C
SCL_BF
TMR_A
UART_RX
UART
TIMERS
GENE RAL
INPUT/OUTPUT
TMR_D73TMR_B74GPIO7
GPIO577GPIO378GPIO179SCL_0-EEPROM80SDA_0- EEPROM
72
76
SHDN_ BF
MUX-A 0|CS
MUX-A 2|U/D
33
49
50
60
PAR_D238PAR_D21
RESET_IN
CONTROL
BLACKFIN
BMODE162UART_TX
PAR_D2 2
61
114
53
TMR_C
FUTURE51FUTURE
FUTURE54FUTURE55FUTURE56FUTURE57FUTURE
SPORT_DT234SPORT_DT3
SPORT _DR330SPORT _DR2
FUTURE USE
PAR_D1 910PAR_D1 7
FUTURE71FUTURE
PAR_D1 6
PAR_D1 8
PAR_D2 0
9
70
111
112
113
BLACKFIN-DB_FEMALE_CONNECTOR_2
FUTURE65FUTURE66FUTURE67FUTURE68FUTURE
64
Figure 15. Schematic of SDP Connector
Rev. 0 | Page 11 of 16
Page 12
UG-255 Evaluation Board User Guide
09712-016
Figure 16. Component Side View
09712-017
Figure 17. Component Placement Drawing
09712-018
Figure 18. Layer 2 Side PCB Drawing
Rev. 0 | Page 12 of 16
Page 13
Evaluation Board User Guide UG-255
09712-019
Figure 19. Layer 3 Side PCB Drawing
09712-020
Figure 20. Solder Side PCB Drawing
Rev. 0 | Page 13 of 16
Page 14
UG-255 Evaluation Board User Guide
ORDERING INFORMATION
BILL OF MATERIALS
Table 7.
Qty Reference Designator Description Supplier1/Part Number
1 C1 10 nF capacitor, 0805 FEC 1692285
4 C2, C4, C25, C26 0.1 μF capacitor, 0603 FEC 138-2224
1 C3 1 μF capacitor, 0402 FEC 1288253
2 C24, C27 10 μF capacitor, 1206 FEC 1611967
1 D6 LED, green FEC 579-0852
1 J1 3-pin connector FEC 151790
1 J2 2-pin connector FEC 151789
1 J22 Receptacle, 0.6 mm, 120-way Digi-Key H1219-ND
4 A20, A21, A24, A25 Header 2-row, 36 + 36 way and jumper socket, black FEC 148-535 and FEC 150-410
3 A27, A29, A30 Header 1-row, 3-way and jumper socket, black FEC 102-2248 and FEC 150-410
4 BUF-W1, OAVOUT, BUF-3, BUF-4 Header 1-row, 2-way and jumper socket, black FEC 102-2247 and FEC 150-410
1 R41 1.78 kΩ resistor, 0603, 1% FEC 1170811
2 R1, R2 2.2 kΩ resistor, 0603, 1% FEC 933-0810
5 R3, R4, R38, R39, R40 2.7 kΩ resistor, 1206, 1% FEC 9337288
40
AD5162-1, AD5162-2, AD8403-1, AD8403-2,
AD5204-1, AD5204-2, AD5204-3, AD5204-4,
AD5222-1, AD5222-2, AD5232-1, AD5232-2,
AD5233-1, AD5233-2, AD5233-3, AD5233-4,
AD5235-1, AD5235-2, AD5243-1, AD5243-2,
AD5252-1, AD5252-2, AD8403-1, AD8403-2,
AD8403-3, AD8403-4, AD8403-1, AD8403-2,
AD8403-3, AD8403-4, ADN2850-1, ADN2850-
2, R34, R35, R42, R43
1 R37 1 kΩ resistor, 0603, 1% FEC 933-0380
6 3.3 V, 5 V, DGND, AGND, VDD, VSS Test point, PCB, black, PK100 FEC 873-1128
34
A1, A2, A3, A4, RDY|MODE, RESET_BF, SCL_BF,
SCLK_BF, SDA_BF, SDO_BF, SHDN_BF,
SYNC_BF, MUX-A0|CS, MUX-A1|DACSEL MUX-
A2|U/D, O1, O2, DIN_BF, CLK, B1, B2, B3, B4, V1,
V2, VOUT, VOUT2, VOUT3, VOUT4, W1,
W1_BUF, W2, W3, W4, WP_BUF
1 U1
1 U2
1 U3
1 U4
1 U5 Dual, increment/decrement digital potentiometer Analog Devices AD5222
1 U6 4-channel digital potentiometer Analog Devices AD8403
1 U7
1 U8 4-channel digital potentiometer Analog Devices AD5204
1 U9
1 U10
1 U11
0 Ω resistor, 0603 FEC 9331662
Test point, PCB, red, PK100 FEC 873-1144
2
256-position, dual-channel, I
potentiometer
256-position, dual-channel, SPI digital
potentiometer
256-position, one-time programmable, dualchannel, I
Nonvolatile, quad, 64-position digital
potentiometer
Quad, 256-position, I
digital potentiometer
2
C, nonvolatile memory, dual, 256-position digital
I
potentiometer
Nonvolatile memory, dual, 256-position digital
potentiometer
Dual, 1024-position digital potentiometer with
nonvolatile memory and SPI interface
2
C digital potentiometer
2
C-compatible digital
C, nonvolatile memory
Analog Devices AD5243
Analog Devices AD5162
Analog Devices AD8403
Analog Devices AD5233
Analog Devices AD5254
Analog Devices AD5252
Analog Devices AD5232
Analog Devices AD5235
Rev. 0 | Page 14 of 16
Page 15
Evaluation Board User Guide UG-255
Qty Reference Designator Description Supplier1/Part Number
1 U12
Dual, 1024-position digital rheostat with
nonvolatile memory and SPI interface
1 U13
2.5 V/3.3 V, 16-bit (dual 8 bit), 2-port level
translator bus switch
1 A22 3 V/5 V, ± 5 V CMOS, 8-channel analog multiplexer Analog Devices ADG658
1 U15
50 MHz, precision, low distortion, low noise CMOS
amplifier
1 U14
Precision, 20 MHz, CMOS, quad, rail-to-rail
operational amplifier
1 U25 24LC64 EEPROM FEC 975-8070
1
FEC refers to Farnell Electronic Component Distributors; Digi-Key refers to Digi-Key Corporation.
RELATED LINKS
Resource Description
AD5243
AD5162
AD5233
AD5222
AD8403
AD5254
AD5204
AD5252
AD5232
AD5235
ADN2850
ADG3247
ADG658
AD8652
AD8618
Product Page, 256-Position Dual-Channel I2C Compatible Digital Potentiometer
Product Page, 256-Position Dual-Channel SPI Digital Potentiometer
Product Page, Nonvolatile, Quad, 64-Position Digital Potentiometer
Product Page, Dual, Increment/Decrement Digital Potentiometer
Product Page, 4-Channel Digital Potentiometer
Product Page, Quad 256-Position I2C Nonvolatile Memory, Digital Potentiometer
Product Page, 4-Channel Digital Potentiometer
Product Page, I2C, Nonvolatile Memory, Dual 256-Position Digital Potentiometer
Product Page, Nonvolatile Memory, Dual, 256-Position Digital Potentiometer
Product Page, Dual 1024-Position Digital Potentiometer with Nonvolatile Memory and SPI Interface
Product Page, Dual 1024-Position Digital Rheostat with Nonvolatile Memory and SPI Interface
Product Page, 2.5 V/3.3 V, 16-Bit (Dual 8-Bit), 2-Port Level Translator, Bus Switch
Product Page, 3 V/5 V ± 5 V CMOS 8-Channel Analog Multiplexer
Product Page, 50 MHz, Precision, Low Distortion, Low Noise CMOS Amplifier
Product Page, Precision 20 MHz CMOS Quad Rail-to-Rail Operational Amplifier
Analog Devices ADN2850
Analog Devices ADG3247
Analog Devices AD8652
Analog Devices AD8618
Rev. 0 | Page 15 of 16
Page 16
UG-255 Evaluation Board User Guide
NOTES
I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
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.
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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
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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
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©2011 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG09712-0-2/11(0)
Rev. 0 | Page 16 of 16
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