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EVAL-AD7414EBZ/EVAL-AD7415EBZ User Guide
UG-912
One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Te l: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluation Boards for the AD7414/AD7415 SMBus/I
2
C, 10-Bit Digital
Temperature Sensors
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. A | Page 1 of 11
AD7414/AD7415 FEATURES
10-bit temperature-to-digital converter
Temperature range: −40°C to +125°C
Typical accuracy of ±0.5°C at +40°C
SMBus-/I
2
C-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 I
2
C addresses (AD7414)
2 versions allow 6 I
2
C addresses (AD7415)
APPLICATIONS
Hard disk drives
Personal computers
Electronic test equipment
Office equipment
Domestic appliances
Process controls
Cellular phones
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.
THE AD7414/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 I
2
C 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 I
2
C
addresses, while the two AD7415 versions allow up to six I
2
C
addresses to be used.
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.
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:
This document
The AD7414/AD7415 evaluation board
The evaluation software CD
A USB cable
