AD7746 Evaluation Board
Data Sheet EVAL-AD7746EB
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
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.
Trademarks and registered trademarks are the property of their respective owners.
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Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2005–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Full-featured evaluation board for the AD7746
PC evaluation software for control and measurement
of the AD7746
USB interface and cable in kit
APPLICATIONS
Capacitive length sensor demo
AD7746 performance evaluation
Platform to integrate the AD7746 into system design
EVALUATION BOARD DESCRIPTION
This data sheet describes the evaluation board for the AD7746.
The evaluation board interfaces to the USB port of a PC. Evaluation
software is available with the evaluation board, which allows the
user to easily communicate with the AD7746.
Note that the AD7746 evaluation board software should be
installed before connecting the AD7746 evaluation board to
the PC.
To properly use the evaluation board, see the AD7746 data sheet
on the Analog Devices, Inc., website. You can download the data
sheet from www.analog.com/AD7746.
AD7746 DEVICE DESCRIPTION
The AD7746 is a high resolution capacitance-to-digital converter
(CDC). The capacitance to be measured is connected directly to
the device inputs. The architecture features inherent high resolu-
tion (24 bits, no missing codes, up to 21-bit effective resolution),
high linearity (0.01%), and high accuracy (±4 fF factory calibrated).
The AD7746 capacitance input range is ±4 pF (changing); the
AD7746 can accept up to 17 pF common-mode capacitance (not
changing), which can be balanced by a programmable on-chip
digital-to-capacitance converter (CAPDAC).
The AD7746 has two capacitive input channels. Each channel
can be configured as single-ended or differential. The AD7746
is designed for floating capacitive sensors. For capacitive sensors
with one plate connected to ground, the AD7747 is recommended.
The AD7746 has an on-chip temperature sensor with resolution
of 0.1°C and accuracy of ±2°C. The on-chip voltage reference
and the on-chip clock generator eliminate the need for any
external components in most capacitive sensor applications.
The part has a standard voltage input, which, together with the
differential reference input, allows easy interface to an external
temperature sensor such as an RTD or diode.
FUNCTIONAL BLOCK DIAGRAM
05513-001
CAPACITIV E LE NG T H SE NSO R DEM O
OPTIONAL
EXT. AV
DD
CYPRESS
EZ USB
EEPROM
(USB ID)
AD7746
EXCA
EXCB
CIN1(+)
CIN1(–)
ADP3303
VOLTAGE
REGULATOR
EXT
5.0V
3.3V
CIN2(–) CIN2(+)
USB I
2
C
0W
AV
DD
V
IN
V
REF
SDA
SCL
RDY
PC + L ABV IEW
USER SOFTWARE
Figure 1.
EVAL-AD7746EB Data Sheet
Rev. A | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Evaluation Board Description ......................................................... 1
AD7746 Device Description ........................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Evaluation Board Software Installation ......................................... 3
Evaluation Board Hardware ............................................................ 4
Power Supplies .............................................................................. 4
I2C Interface Configuration Options ......................................... 4
USB Connector ............................................................................. 5
Sockets ........................................................................................... 5
Evaluation Board Software ...............................................................6
Configuring the Evaluation Board ..............................................6
Getting Started with the Software ...............................................6
Setup Window ...............................................................................8
User Unit Setup ..............................................................................9
Performing a Noise Analysis ..................................................... 10
Saving and Reloading User Configurations.............................. 10
Schematics and Artwork ............................................................... 11
Component ID ............................................................................ 12
Ordering Information .................................................................... 13
Bill of Materials ........................................................................... 13
Ordering Guide .......................................................................... 13
ESD Caution................................................................................ 13
REVISION HISTORY
11/11—Rev. 0 to Rev. A
Changes to Evaluation Board Software Installation Section ...... 3
Deleted Figure 2 ................................................................................ 3
Added Figure 2, Figure 3, and Figure 4; Renumbered
Figures Sequentially ......................................................................... 3
Renamed Evaluation Board Hardware and Interfacing Section
to Evaluation Board Hardware Section ......................................... 4
Changes to Power Supplies Section ................................................ 4
Deleted Link Options Section, Figure 3, and Table 1 .................. 4
Added I2C Interface Configuration Options Section,
Figure 6, Figure 7, and Figure 8 ...................................................... 4
Deleted Connecting the Board to the PC Section ........................ 5
Renamed Schematic Section to Schematics and Artwork
Section; Changes to Figure 10....................................................... 11
Renamed Layout Section to Component ID Section ................ 12
Added Ordering Information Section, Bill of Materials
Section, and Table 2 ........................................................................ 13
Changes to Ordering Guide .......................................................... 13
5/05—Revision 0: Initial Version
Data Sheet EVAL-AD7746EB
Rev. A | Page 3 of 16
EVALUATION BOARD SOFTWARE INSTALLATION
Before connecting the AD7746 evaluation board to the PC,
install the AD7746 evaluation board software by completing
the following steps.
1. Insert the AD7746 evaluation kit CD into the CD-ROM
drive of your PC.
Please install software before connecting board to USB port!
Evaluation kit documentation including installation guideline
may be found in file AD7746EB.pdf on this CD
Version 2.2
Feb. 2011
AD7746
Evaluation Kit CD
05513-002
d.
Figure 2. AD7746 Evaluation Kit CD
The evaluation software installation wizard should start
automatically (see Figure 3). If the wizard does not start,
run Setup.exe from the AD7746 evaluation kit CD.
05513-103
Figure 3. AD7746 Evaluation Software Installation Wizard
2. Follow the steps in the evaluation software installation
wizard until the installation is completed.
3. Connect the AD7746 evaluation board to the USB
connector of the PC using the USB cable included in the
evaluation kit. The POWER LED on the evaluation board
turns on, and the Found New Hardware Wizard starts
automatically on the PC (see Figure 4).
05513-104
AD7746 Evaluation Board
Figure 4. Found New Hardware Wizard
4. Follow the steps in the Found New Hardware Wizard
window. If a message that the software has not passed
Windows® Logo testing appears, click Continue Anyway
(see Figure 5).
05513-003
Figure 5. Windows Logo Warning
5. Follow the steps in the Found New Hardware Wizard
window until the installation is completed.
EVAL-AD7746EB Data Sheet
Rev. A | Page 4 of 16
EVALUATION BOARD HARDWARE
POWER SUPPLIES
The board is powered via the 5 V supply from the USB connec-
tor, J1, indicated via LED D1 (POWER). The 5 V supply can be
used to power the AD7746 directly. A 3.3 V regulated voltage from
the on-board ADP3303 high precision, low power, 3.3 V output
voltage regulator can also be used. Alternatively, the AD7746 can
be powered using an external 3 V or 5 V power supply via J2.
I2C INTERFACE CONFIGURATION OPTIONS
The AD7746 evaluation board allows different digital interface
configurations by redirecting the I2C signals, SDA and SCL,
on LK2.
Default Configuration
Links in the SDA, SCL, and RDY positions of LK2 connect
the USB microcontroller as the I2C bus master to the on-board
AD7746, as shown in Figure 6. This configuration allows easy
use of the evaluation board, together with the PC software.
05513-106
AD7746 EVALUATION BOARD
AD7746
U1
U3
LK2
MICRO-
CONTROLLER
SDA
SCL
RDY
Figure 6. AD7746 Evaluation Board in Default Configuration
External Connection—USB
The AD7746 evaluation board allows customers to connect
their own specific AD7746 application board to Pin 4, Pin 6,
and Pin 8 of LK2. Using the PC evaluation software, customers
can evaluate their application hardware using the AD7746
evaluation board as a USB-to-I2C digital interface only, as
shown in Figure 7.
05513-107
AD7746 EVALUATION BOARD
FINAL APPLICATION
AD7746
AD7746
U1
U3
LK2
MICRO-
CONTROLLER
SDA
SCL
RDY
SDA
SCL
RDY
Figure 7. AD7746 Evaluation Board as USB-to-I2C Interface
External Connection—AD7746
The AD7746 evaluation board can be used for software develop-
ment by connecting a customer-specific external microcontroller
board to Pin 3, Pin 5, and Pin 7 of LK2, as shown in Figure 8. In
this configuration, the AD7746 CDC on the evaluation board is
used as the sensing device.
05513-108
AD7746 EVALUATION BOARD
CUSTOMER BOARD
AD7746
U1
U3
LK2
MICRO-
CONTROLLER
MICRO-
CONTROLLER
SDA
SCL
RDY
SDA
SCL
RDY
Figure 8. AD7746 Evaluation Board Software Development Platform
Data Sheet EVAL-AD7746EB
Rev. A | Page 5 of 16
USB CONNECTOR
A standard USB connector, J1, is used to connect the evaluation
board to the USB port of a PC. A standard USB connector cable
is included with the AD7746 evaluation kit. Because the board
is powered by the USB connector, an external power supply is
not required, although one can be connected to J2.
Communication between the AD7746 evaluation board and the
PC is over the USB interface. The on-board USB controller
controls this communication.
SOCKETS
The AD7746 evaluation board has four populated sockets:
EXCA (P1), EXCB (P2), CIN1− (P3), and CIN1+ (P4). The
functions of these sockets are described in Tabl e 1.
To interface to the AD7746 using the analog voltage input
channel or the external temperature sensor and an external
voltage reference, use the unpopulated through hole pads
labeled AIN+, AIN−, REF+, and REF− located on the AD7746
evaluation board.
Table 1. Socket Functions
Socket Function
CIN1+ Subminiature BNC (SMB) connector. The capacitive input signal for the CIN1(+) input of the AD7746 is applied to this socket.
CIN1− Subminiature BNC (SMB) connector. The capacitive input signal for the CIN1(−) input of the AD7746 is applied to this socket.
CIN2+1Subminiature BNC (SMB) connector. The capacitive input signal for the CIN2(+) input of the AD7746 is applied to this socket.
On this evaluation board, the positive terminal of the capacitive length sensor demo is connected to CIN2+.
CIN2−1
Subminiature BNC (SMB) connector. The capacitive input signal for the CIN2(−) input of the AD7746 is applied to this socket.
EXCA Subminiature BNC (SMB) connector. This socket is connected to the EXCA output of the AD7746. On this evaluation board,
the negative terminal of the capacitive length sensor demo is connected to EXCA. This provides excitation to the on-board
capacitive length sensor demo.
EXCB Subminiature BNC (SMB) connector. This socket is connected to the EXCB output of the AD7746.
1 The CIN2− and CIN2+ sockets (P5 and P6, respectively) are unpopulated on the AD7746 evaluation board.
EVAL-AD7746EB Data Sheet
Rev. A | Page 6 of 16
EVALUATION BOARD SOFTWARE
CONFIGURING THE EVALUATION BOARD
The evaluation board is initially configured to allow the user to
interface any capacitive input directly to CIN1 of the AD7746
device. To do this, connect one end of the capacitive input to
the SMB connector labeled CIN1+ or CIN1−. Then connect the
other end of the capacitive input to the SMB connector labeled
EXCB.
The AD7746 provides a second capacitive channel, CIN2. On
the AD7746 evaluation board, the second capacitive channel
is used with the on-board capacitive length sensor demo.
To disable the capacitive length sensor demo, disconnect the two
0 Ω SMD resistors, R1 and R2. Any capacitive sensor can then be
directly interfaced to CIN2 of the AD7746 by connecting one end
of the capacitive input to either of the SMB connectors labeled
CIN2+ or CIN2− and the other end to one of the SMB connectors
labeled EXCA or EXCB.
Note that after the capacitive length sensor demo is disabled,
either of the excitation output pins (EXCA or EXCB) can be
used as the excitation source, regardless of which capacitive
channel is enabled. These settings are configurable using the
evaluation board software.
GETTING STARTED WITH THE SOFTWARE
To run the AD7746 evaluation board software, follow these steps:
1. From the Start menu, select Program Files > Analog
Devices\AD7746 Evaluation Software.
The AD7745/AD7746 Evaluation Software window
appears (see Figure 9). By default, the application opens
to the Real Time tab.
2. Click the Length Demo (CH2) button. This action enables
continuous conversions on Capacitive Channel 2 in single-
ended mode, enables EXCA as the excitation output pin, sets
the update rate, and initializes CAPDAC A. The Capacitive
Length Sensor Demo window appears (see Figure 10).
05513-004
Figure 9. AD7745/AD7746 Evaluation Software Window
Data Sheet EVAL-AD7746EB
Rev. A | Page 7 of 16
3. Slide the ruler on the evaluation board. This action is
mirrored on the screen. The code, capacitance, and length
(in inches or mm) appear on the right side of the window
(see Figure 10). These values change as you slide the ruler
on the evaluation board.
4. Remove the ruler completely by clicking the 0 mm/0 inch
Cal button.
5. Place the ruler at the 51 mm/2 inch mark by clicking the
51 mm/2 inch Cal button. The part is now calibrated to
the length of the ruler. Note that when the ruler length
exceeds 80 mm, the demo can no longer measure the ruler
length because the input capacitance range (±4 pF) has
been exceeded.
6. Click BACK to return to the Real Time tab.
05513-005
Figure 10. Capacitive Length Sensor Demo Window
EVAL-AD7746EB Data Sheet
Rev. A | Page 8 of 16
SETUP WINDOW
After running the capacitive length sensor demo to check the
settings and familiarize yourself with the software, follow these
steps to set up the software.
1. On the Real Time tab, click Setup. The Setup window
appears (see Figure 11).
The Setup window allows you to configure the capacitive
channel, the voltage/temperature channel, the output pin
for the excitation source, the CAPDACs, and the AD7746
operating mode.
Note that the Setup window reflects the settings established
during the capacitive length sensor demo, that is,
• Capacitive Channel 2 is enabled in single-ended mode.
• EXCA is enabled as the excitation output pin.
• CAPDAC A is set to a value determined by the demo
calibration routine.
• The part is in continuous conversion mode.
2. Click OK to return to the Real Time tab.
05513-006
Figure 11. Setup Window
Data Sheet EVAL-AD7746EB
Rev. A | Page 9 of 16
USER UNIT SETUP
To set up the user unit, follow these steps.
1. On the Real Time tab, click User Unit Setup. The User
Unit Setup window appears (see Figure 12).
The User Unit Setup window allows you to configure a
unit that reflects the nature and sensitivity of the capacitive
sensor connected to the selected capacitive input. This
configuration is then reflected in the Real Time tab and
the Analysis tab. After the capacitive length sensor demo
is run, the user unit reflects the capacitive length sensor
by default.
2. Click OK to return to the Real Time tab.
3. Click START. Note that the Real Time tab reflects the set-
tings established during the capacitive length sensor demo.
The samples collected are displayed graphically in real time.
The samples are also displayed in hexadecimal format and
capacitance. When you move the ruler, the tab is updated
in real time, and the input capacitance changes. Also, the
User Unit field displays the length of the ruler in mm.
4. Click STOP to stop the display of data.
5. Click Quick Setup (CH1). This action enables Capacitive
Channel 1, enables EXCB as the excitation output pin, and
places the part in continuous conversion mode. In continuous
conversion mode, the part directly measures any capacitance
placed across the CIN1(+)/CIN1(−) and EXCB pins.
For complete information about this setup, click Setup.
Alternatively, you can click Registers. This action displays a
detailed register map of all available registers and reflects the
current user settings. The Registers window can be used if a
more detailed configuration of the AD7746 device is required.
05513-007
Figure 12. User Unit Setup Window
EVAL-AD7746EB Data Sheet
Rev. A | Page 10 of 16
PERFORMING A NOISE ANALYSIS
With the quick setup for Capacitive Channel 1 still in place,
click the Analysis tab. The Analysis window appears (see
Figure 13). To perform a noise analysis, follow these steps.
1. Type the number of samples required and click START.
After the samples are collected, they can be displayed as a
waveform or as a histogram. The average, RMS noise, p-p
noise, RMS resolution, and p-p resolution values relating to
the collected set of samples appear in the Analysis (Codes)
box on the right side of the window. These values can be
displayed in code, in capacitance, or in the user configured
unit.
2. To save this set of collected samples, select File > Save
Binary Data.
3. Select the directory and file name where you want to save
the data. The default file name is Binary Data.txt.
A summary of the current configuration as well as the data for
the selected number of samples in hexadecimal format is saved
to the file.
SAVING AND RELOADING USER CONFIGURATIONS
You can save a configuration and reload it at a later time. To
save any configuration, follow these steps:
1. Select File > Save Settings.
2. Select the directory and file name where you want to save
the current user configuration. The default file name is
Settings.txt. The user unit, user offset, and user range are
saved together with the complete register map as it appears
in the Registers window.
To reload these settings at any time, select File > Load Settings.
A prompt appears and points, by default, to the previously saved
user configuration Settings.txt file.
05513-008
Figure 13. Analysis Window
Data Sheet EVAL-AD7746EB
Rev. A | Page 11 of 16
SCHEMATICS AND ARTWORK
DEMO_EXC
GROUND CONNECTION
FUNC.
EXCA
EXCB
CIN1–
CIN1+
CIN2–
CIN2+
P1 1
2
3
4
5
6
7
8
SCL
RDY
CLAMP
SDA
U1 AD7746
NC
VDD
GND
16
15
14
13
12
11
10
9
R1
R3
R4
R5
RDY
LK2
AVDD +3.3V
SCL
SDA
3
5
1
7
9
4
6
2
8
10
DEMO_CIN
R2
P2
P3 P5
P4 P6
+3.3V
+3.3V +3.3V
D2
RED
AVDD
AGND DGND
+3.3V
+3.3V +3.3V +3.3V +3.3V
EEPROM FOR USB CONSTANTS
OPTIONAL INTERFACE CONSTANTS USB CONTROLLER
USB INTERFACE
HOST
SYSTEM
OPTIONAL
INTERFACE
FILTER I
2
C INTERFACE
I
2
CTERMINATION
U4 24LC64
1
2
3
4
8
7
5
6
+5V
EXT.VDD
AGND
J2–1
J2–2
D3
S2A
+3.3V
LK1
AVDD
R6
1R5
+5V
A
B
C
AVDD SEL E
C
T: A E XT. V D D
B +5.0V
C +3.3V
A0
A1
A2
GND
VCC
WP
SCL
SDA
AGND T1
T2
T3
T4
T5
T6
REF–
REF+
AIN–
AIN+
AVDD
AVDD
RDY
SCL
SDA
18
19
20
21
22
23
24
25
7
3
11
17
27
32
43
55
VCC
VCC
VCC
VCC
VCC
VCC
33
34
35
36
37
38
39
40
45
46
47
48
49
50
51
52
5
9
8
4
54
30
29
31
42
44
13
14
2
1
PB0/FD0
PB1/FD1
SCL
SDA
PB2/FD2
PB3/FD3
PB4/FD4
PB5/FD5
1
2
3
4
5
6
VCC
D–
J1
USB–B
D+
GND
SH
SH
PB6/FD6
PB7/FD7 U3
CY7C68013
PA0/INT0
PA1/INT1
PA2/*S LOE
PA3/*WU 2
PA4/FIF0ADR0
PA5/FIF0ADR1
PA6/*P KTEN D
PD0/FD8
PD1/FD9
PD2/FD10
PD3/FD11
PD4/FD12
PD5/FD13
PD6/FD14
PD7/FD15
XTALIN
Y1 24MHz
D–
D+
XTALOUT
CLKOUT
CTL1/*FLAGB
CTL0/*FLAGA
CTL2/*FLAGC
RESET
*WAKEUP
IFCLK
RSVD
RDY1/*SLWR
RDY0/*SLRD
POWER
+3.3V
D1
GREEN
10
6
12
26
28
41
53
56
AGND
GND
GND
GND
GND
GND
C6
12pF
C7
12pF
100mm
1.4pF
DEMO_EXC
DEMO_CIN
CAPACITIVE LENGTH SENSOR DEMO
1
2
3
4
05513-009
+3.3V
3.3V DVDD REGULATOR
1
2
3
4
8
7
5
6
U2 ADP3303
OUT
OUT
NR
GND
IN
IN
SD
ERR
+5V
++
+
+3.3V DECOUPLING FOR U2
C15 C16 C17 C18 C19 C20 C21 C22 C23
+
16
15
PA7/*FLAGD/SLCS
AGND AVCC
AVCC
GND
EXCA
EXCB
REFIN(+) VIN(–)
VIN(+)
REFIN(–)
CIN1(–)
CIN1(+)
CIN2(–)
CIN2(+)
0Ω
0Ω
0Ω
0Ω
0Ω
R9
2.2kΩ
R10
2.2kΩ
R8
1kΩ
R7
1kΩ
R14
100kΩ
R12
100kΩ
C14
0.1µF
0.1µF 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF 10µF
C5
1µF
R11R13
100kΩ
C9
10µF
C8
10µF
C11
0.1µF
C10
0.1µF
C13
0.1µF
C3
1µF
C4
1µF
C12
0.1µF
C1
0.1µF
C2
10µF
L1
0.5µH
Figure 14. Evaluation Board Schematics
EVAL-AD7746EB Data Sheet
Rev. A | Page 12 of 16
COMPONENT ID
05513-010
Figure 15. Evaluation Board Layout, Silkscreen
Data Sheet EVAL-AD7746EB
Rev. A | Page 13 of 16
ORDERING INFORMATION
BILL OF MATERIALS
Table 2.
Qty Designator Description Manufacturer Part No.
3 U1, Sample1, Sample2 CDC for proximity sensing, 16-lead TSSOP Analog Devices AD7746RUZ
1 U2 3.3 V voltage regulator, low IQ, 8-lead SOIC Analog Devices ADP3303ARZ-3.3
1 U3 Microcontroller, EZ-USB FX2LP, 56-lead QFN Cypress CY7C68013A-56LFXC
1 U4 EEPROM, I2C, 64 kb, 8-lead SOIC Microchip 24LC64-I/SN
1 D1 LED, green, 15 mcd, 572 nm, 0805 Avago HSMG-C170
1 D2 LED, red, 10 mcd, 626 nm, 0805 Avago HSMS-C191
1 D3 Diode, 50 V, 1.5 A, SMB Vishay S2A-E3/52T
14 C1, C10 to C22 Capacitor, ceramic, SMD, 100 nF, X7R, 16 V, 0603 AVX CM105X7R104K16AT
4 C2, C8, C9, C23 Capacitor, tantalum, SMD, 10 μF, 6.3 V, TAJ-A AVX TAJA106K006RNJ
3 C3 to C5 Capacitor, ceramic, SMD, 1 μF, Y5V, 10 V, 0603 Yageo CC0603ZRY5V6BB105
2 C6, C7 Capacitor, ceramic, SMD, 12 pF, NP0, 50 V, 0603 Yageo CC0603JRNPO9BN120
5 R1 to R5 Resistor, SMD, 0 Ω, 0603 Multicomp MC 0.063W 0603 0R
1 R6 Resistor, SMD, 1.5 Ω, 1%, 0603 Multicomp MC 0.063W 0603 1% 1R5
2 R7, R8 Resistor, SMD, 1 kΩ, 1%, 0603 Multicomp MC 0.063W 0603 1% 1k
2 R9, R10 Resistor, SMD, 2.2 kΩ, 1%, 0603 Multicomp MC 0.063W 0603 1% 2k2
3 R12 to R14 Resistor, SMD, 100 kΩ, 1%, 0603 Multicomp MC 0.063W 0603 1% 100k
1 L1 Ferrite bead, SMD, 300Z, 200 mA, 0805 Sigma Inductors BMB2A0300AN1
1 Y1 Crystal, 24 MHz, 12 pF, CMS-8 series ECS ECS-240-12-20A-TR
1 J1 Connector, USB type Mini-B Molex 56579-0576
1 J2 Terminal block with screws, pitch 5 mm Camden CTB5000/2
4 P1 to P4 Connector, SMB, 50 Ω Multicomp 24-14-2-TGG
1 LK1 Straight header, 2 × 3-pin, pitch 2.54 mm Harwin M20-9980346
1 LK2 Straight header, 2 × 5-pin, pitch 2.54 mm Harwin M20-9980546
4 Jumper socket Jumper socket, red; insert in these locations:
LK1 (5.0 V), LK2 (SDA, SCL, RDY)
Harwin M7566-05
ESD CAUTION
ORDERING GUIDE
Model Description
EVAL-AD7746EBZ1 Evaluation Board
1 Z = RoHS Compliant Part.
EVAL-AD7746EB Data Sheet
Rev. A | Page 14 of 16
NOTES
Data Sheet EVAL-AD7746EB
Rev. A | Page 15 of 16
NOTES
EVAL-AD7746EB Data Sheet
Rev. A | Page 16 of 16
NOTES
I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors)
©2005–2011 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
EB05513-0-11/11(A)
