EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
UG-912
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 Boards for the AD7414/AD7415 SMBus/I2C, 10-Bit Digital
Temperature Sensors
AD7414/AD7415 FEATURES
THE AD7414/AD7415
10-bit temperature-to-digital converter
Temperature range: −40°C to +125°C
Typical accuracy of ±0.5°C at +40°C
SMBus-/I2C-compatible serial interface
3 μA power-down current
Temperature conversion time: 29 μs typical
Space-saving, 6-lead SOT-23 (AD7414) and 5-lead SOT-23
(AD7415) packages
Pin selectable addressing via AS
Overtemperature indicator (AD7414 only)
SMBus alert function (AD7414 only)
4 versions allow 8 I2C addresses (AD7414)
2 versions allow 6 I2C addresses (AD7415)
This section gives a brief description of the AD7414/AD7415
and the system overview. See the AD7414/AD7415 data sheet
for further details.
The AD7414/AD7415 are complete temperature monitoring
systems in a 6-lead SOT-23 package (AD7414) and a 5-lead
SOT-23 package (AD7415). They each contain a band gap
temperature sensor and a 10-bit ADC to monitor and digitize
the temperature reading to a resolution of 0.25°C.
The AD7414/AD7415 provide a 2-wire serial interface that is
compatible with SMBus and I2C interfaces. The devices come
in four versions: the AD7414-0/AD7415-0, the AD7414-1/
AD7415-1, the AD7414-2, and the AD7414-3. The AD7414-0/
AD7415-0 and the AD7414-1/AD7415-1 versions provide a
choice of three different SMBus addresses for each version. All
four AD7414 versions give the possibility of eight different I2C
addresses, while the two AD7415 versions allow up to six I2C
addresses to be used.
APPLICATIONS
Hard disk drives
Personal computers
Electronic test equipment
Office equipment
Domestic appliances
Process controls
Cellular phones
The 2.7 V supply voltage, low supply current, serial interface, and
small package size of the AD7414/AD7415 make them ideal for
a variety of applications, including PCs, office equipment,
cellular phones, and domestic appliances.
GENERAL DESCRIPTION
The AD7414/AD7415 evaluation board allows the AD7414/
AD7415 digital temperature sensors to be quickly and easily
evaluated using a personal computer (PC).
Using the evaluation board and its accompanying software, the
AD7414/AD7415 evaluation board can be interfaced with any
PC via a USB port. The software works on 32-bit Windows® 7
machines and earlier versions such as Windows XP.
The software allows a user to configure the board and monitor
the temperature readings of the AD7414/AD7415.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
In the AD7414, on-chip registers can be programmed with high
and low temperature limits, and an open-drain overtemperature
indicator output (ALERT) becomes active when a programmed
limit is exceeded. A configuration register allows programming
of the state of the ALERT output (active high or active low).
This output can be used as an interrupt or as an SMBus alert.
EVALUATION SYSTEM PACKAGE CONTENTS
The evaluation system package contains the following items:
Rev. A | Page 1 of 11
This document
The AD7414/AD7415 evaluation board
The evaluation software CD
A USB cable
UG-912
EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
TABLE OF CONTENTS
AD7414/AD7415 Features .............................................................. 1
Test Points ......................................................................................3
Applications ....................................................................................... 1
Evaluation Board Software Quick Start Procedures .....................4
General Description ......................................................................... 1
Installing the Software ..................................................................4
The AD7414/AD7415 ...................................................................... 1
Using the Software for Testing.....................................................4
Evaluation System Package Contents............................................. 1
Evaluation Board Schematics and Artwork ...................................7
Revision History ............................................................................... 2
Ordering Information .................................................................... 10
Evaluation Board Hardware ............................................................ 3
Bill of Materials ........................................................................... 10
Using the Hardware...................................................................... 3
Mini-B USB Connector J1........................................................... 3
REVISION HISTORY
6/2016—Rev. 0 to Rev. A
Updated Format .................................................................. Universal
Changes to General Description Section ...................................... 1
Changes to Figure 11, Figure 12, and Figure 13 ........................... 9
Changes to Table 2 .......................................................................... 10
3/2006—Revision 0: Initial Version
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EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
UG-912
EVALUATION BOARD HARDWARE
The AD7414/AD7415 evaluation board contains the following
main components, which can also be identified in the printed
circuit board silkscreen and schematic diagrams shown in
Figure 9 through Figure 11:
MINI-B USB CONNECTOR J1
J1 Pin
1
2
3
4
5
The AD7414 IC, U1
The AD7415 IC, U2
A USB microcontroller, U6
An ALERT LED, D2
A power LED, D1
A connector for the USB interface, J1
Table 1 shows the connections to J1.
Table 1. J1 Connections
Mini-B Function
5V
−Data
+Data
Key (not used; connected to ground)
Ground
The USB microcontroller, U6, handles the communication
between the mini-B plug and the rest of the evaluation board.
USING THE HARDWARE
The hardware is simple to use. Before connecting the evaluation
board to the USB port on the PC, using the USB A to mini-B
cable provided, make sure that the software is installed. No
external power supply is required.
TEST POINTS
Various system logic signals, ground, and the power rail are
available at the test points on the board.
Rev. A | Page 3 of 11
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EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
EVALUATION BOARD SOFTWARE QUICK START PROCEDURES
The software allows the functions of the AD7414/AD7415 to be
controlled from a PC via an easy to use interface operating
under Windows XP, Windows 2000, or higher. The contents of
the internal registers of the device can be easily read or altered
through a user friendly interface, while the Visual Display
window gives a graphical display of the temperature and allows
the overtemperature and undertemperature limits to be altered
using a slider control.
INSTALLING THE SOFTWARE
To install the software,
Insert the CD.
Click Start > Run.
Enter x: AD7414_15_Eval_v2.0.0.exe, where x is the letter
of your CD drive.
Click OK.
Alternatively, run Windows Explorer or My Computer, select
the CD drive, and double-click AD7414_15_Eval_v2.0.0.exe.
The installer extracts the files needed to install the software and
the InstallShield Wizard dialog box opens (see Figure 1).
Uncheck any component you do not wish to install and click
Next >. If Typical or Compact is selected, this step is omitted,
and the Select Program Folder dialog box appears. This allows
you to select the program folder to which program icons are
added. Select the desired folder and click Next >.
The InstallShield Wizard now installs the program files to the
selected folders. Click Finish to complete the installation.
If an existing version of the software is found during installation,
you can modify the existing installation by adding or removing
components, repair the installation by replacing existing files
with ones from the CD (useful if a file has been corrupted), or
uninstall the entire software package.
Select the desired option and click Next >. If Modify is selected,
you can add or remove components. If Repair is selected, the
installed files are replaced with new files from the CD.
If Remove is selected, you are prompted to confirm the complete
removal of the software. Click OK to confirm removal of the
software. During removal of the software, you may need to
confirm removal of some files.
These files can be used by other Analog Devices, Inc., software.
If no other Analog Devices software is installed on the system, it
is safe to delete them. To remove all shared files without further
prompting, select Don’t display this message again before
clicking Yes.
Click Finish to complete the maintenance procedure.
USING THE SOFTWARE FOR TESTING
When using the software, first ensure that the evaluation board
is powered up and connected to the USB port.
05921-006
To start the software, click: Start > All Programs > Analog
Devices > AD7414 / AD7415 Evaluation Software > AD7414
Evaluation Software. The software searches for the evaluation
board and initializes it.
Figure 1. InstallShield Wizard Dialog Box
Click Next > to continue the installation. Various installation
options are available, depending on whether a version of the
software is already installed. If this is a new installation, a license
agreement appears. Click Yes to accept the agreement and
continue with the installation.
You are now given the three software installation options:
Typical, Compact, and Custom.
05921-007
If you want to install the software in the default folder shown,
click Next >. Otherwise, click Browse… and choose a different
folder. The folder chosen is where the program is installed.
Once you have chosen, click OK.
Figure 2. AD7414/AD7415 Found
Select the desired option, then click Next >. If Custom is
selected, a window appears that allows individual components
to be installed.
Rev. A | Page 4 of 11
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UG-912
Settings
If the evaluation board is not found, the following message
appears:
05921-008
Click the Settings tab to access the Settings dialog box. This
dialog box allows you to select which device is being read, the
AD7414 or the AD7415 (see Figure 6).
Figure 3. AD7414/AD7415 Not Found
There are three tabs at the top of the program window:
General, Readings, and Settings. These can be used to access
the various functions of the software.
The General tab shows the software version.
Temperature Reading
The Readings tab allows the temperature to be displayed as a
rolling graph. Measurement limits are also displayed for the
AD7414 only. To view the graphic data in more or less detail,
move the arrow pointers on the x-axis and y-axis to zoom in or
zoom out (see Figure 4).
05921-011
If this happens, check that the evaluation board is correctly
connected, that D1 is lit, and try again.
Figure 6. Device Options
You can select or enable/disable various options within this
dialog box, including the following:
Power Up/Power Down.
Alert Polarity (AD7414 only).
Active Low. Alert Diode D2 is lit when an overtemperature
condition happens (current temperature reading higher
than the temperature set by the blue slider).
Active High. Alert Diode D2 is lit when an undertemperature condition happens (that is, when the current
temperature reading is lower than the temperature set by
the grey slider).
Bypass SCL/SDA Filter. Switching off the input filters
improves the transfer rate but has a negative effect on the
EMC behavior of the device.
Disable Alert (AD7414 only).
05921-009
Data Logging
The Settings dialog box also allows you to log data into a file.
Figure 4. Zoom Controls
Temperature Limits
05921-012
The upper and lower alert limits can be set by dragging the blue
and grey sliders to the desired temperature values.
The current temperature reading is represented by the red bar
as well as in text at the bottom of the dialog box.
Figure 7. Data Logging
05921-010
Log Interval sets the time in milliseconds between samples. Once
this has been set, click Log Data. The dialog box in Figure 8
then appears.
Figure 5. Temperature Reading
Rev. A | Page 5 of 11
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EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
You can use this dialog box to open an existing log file or to
create a new log file by typing in a new file name.
05921-013
After selecting an existing file or typing in a new file name, click
Open to begin data logging. To stop data logging, click
Stop Logging…
Figure 8. Opening or Creating a Log File
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EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
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EVALUATION BOARD SCHEMATICS AND ARTWORK
3.3V 3V3 T1
3
+
C20
10µF
C21
0.1µF
2
R11
1kΩ
1
VDD
U2
SDA
5
AD7415
GND
AS
SCL 4
I2C ADDRESS = 1001 001
+
5
C22
10µF
GND1
C19
0.1µF
VDD
SCL
AD7414
R10
1kΩ
SDA
4
ALERT 3 ALERT
8
NC
6
1
GND U1 NC
7
SCL
SDA
2
AS
NC = NO CONNECT
I2C ADDRESS = 1001 001
3.3V
3.3V
R20
1kΩ
R8
10kΩ
ALERT
R15
10kΩ
D2 ALERT
LED
E
B
Q2
C
Figure 9. AD7414/AD7415 Evaluation Board Schematic (Page 1)
Rev. A | Page 7 of 11
GND2
05921-001
3.3V
EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
05921-002
UG-912
Figure 10. AD7414/AD7415 Evaluation Board Schematic (Page 2)
Rev. A | Page 8 of 11
UG-912
05921-003
EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
05921-004
Figure 11. AD7414/AD7415 Evaluation Board Silkscreen
05921-005
Figure 12. AD7414/AD7415 Evaluation Board Component Side
Figure 13. AD7414/AD7415 Evaluation Board Solder Side
Rev. A | Page 9 of 11
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EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
ORDERING INFORMATION
BILL OF MATERIALS
Table 2. Parts List for EVAL-AD7414EBZ/EVAL-AD7415EBZ Evaluation Board
Name
ALERT
3V3_T1
3V3_T2
3V3_T3
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
D1
D2
GND1
GND2
GND3
GND4
J1
Q2
R1
R2
R3
R4
R5
R6
R7
R8
R10
R11
R15
R20
SCL
Part Type
Test point
Test point
Test point
Test point
Capacitor
Capacitor
Capacitor+
Capacitor+
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor+
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor+
Capacitor
Capacitor+
LED
LED
Test point
Test point
Test point
Test point
USB Mini-B
BC807-40LT1
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Test point
Tolerance
5%
5%
10%
10%
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
10%
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
(+80%, −20%)
10%
(+80%, −20%)
10%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
Part Description
Red test point
Red test point
Red test point
Red test point
Capacitor, 0603, 22 pF, 50 V
Capacitor, 0603, 22 pF, 50 V
Capacitor, Case D, 47 μF, 10 V
Capacitor, Case A, 2.2 μF, 10 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, Case A, 10 μF, 10 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 1 μF, 10 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, CASE A, 10 μF, 10 V
Capacitor, 0603, 100 nF, 25 V
Capacitor, Case A, 10 μF, 10 V
LED, green SMD
LED, red SMD
Black test point
Black test point
Black test point
Black test point
Socket, USB Mini-AB SMT (USB-OTG)
Transistor, PNP, SOT-23
Resistor, 0603, 0 Ω
Resistor, 0603, 10 kΩ
Resistor, 0603, 100 kΩ
Resistor, 0603, 10 kΩ
Resistor, 0603, 10 kΩ
Resistor, 0603, 100 kΩ
Resistor, 0603, 1 kΩ
Resistor, 0603, 10 kΩ
Resistor, 0603, 1 kΩ
Resistor, 0603, 1 kΩ
Resistor, 0603, 10 kΩ
Resistor, 0603, 1 kΩ
Red test point
Rev. A | Page 10 of 11
EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
Name
SDA
U1
U2
U3
U4
U6
Y1
Part Type
Test point
AD7414
AD7415
24LC64
ADP3303-3.3
CY7C68013-CSP
XTAL-CM309S
Tolerance
UG-912
Part Description
Red test point
AD7414ARMZ-0, SMBus/I2C digital temperature sensor
AD7415ARTZ-0, digital output temperature sensor
IC, SM EEPROM SERIAL, 64 kΩ
Precision low dropout voltage regulator
IC MCU USB PERIPH HI SPD 56QFN (CY7C68013A-56LFXC)
Crystal, SMD, 24.000000 MHz
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.
©2006–2016 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG05921-0-6/16(A)
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