SMBus/I2CCompatible,10-bitDigital
TemperatureSensorin5PinSOT-23
a
Preliminary Technical Data
AD7415
FEATURES
F U NC T IO NAL B LO C K D IAG RAM
10-Bit Tem perature to Digital Converter.
Tem perature range:
-55oC to +135oC
-55oC to +125oC
Accuracy of ±2oC
SMBusTM/ I2CR Com patible Serial Interface
25µA Supply Current
Tem perature Conversion Tim e - 25µs typ
Space Saving 5-pin SOT-23 Package
Pin-Selectable Addressing via AS
Four Versions Allow Eight I2C Addresses
C O
N
F I G
U R A T I O N
R
E G I S T E
R
APPLICATIONS
Hard Disk Drives
Personal Com puters
Electronic Test Equipm ent
Office Equipm ent
Dom estic Appliances
Process Control
Cellular Phones
G E NE R AL D E S C R IP T IO N
P R O D U C T H IG H LIG H T S
T he AD7415 is a complete temperature monitoring sys-
tem in a 5-pin SOT -23 package. It contains a bandgap
temperature sensor and a 10-bit ADC to monitor and
digitize the temperature reading to a resolution of 0.25oC.
1. T he AD7415 has an on chip temperature sensor that
allows an accurate measurement of the ambient tem-
perature to be made. T he measurable temperature range
is -55oC to +135oC with a ±3oC temperature accuracy
over the full temperature range.
2. SMBus/I2C Compatible Serial Interface with pin
selectable choice of three addresses per version of the
AD7415, eight address options in total.
T he AD7415 provides a two-wire serial interface which is
compatible with SMBus and I2C interfaces. T he part
comes in four versions, AD7415-0, AD7415-1, AD7415-2
and the AD7415-3. T he AD7415-0 & AD7415-1 versions
allow for the choice of three different SMBus addresses
for each version. All four versions give the possibility of
eight different I2C addresses for the AD7415.
3. Supply voltage of 2.7V to 5.5V.
4. Space saving 5-Pin SOT -23 package.
5. 10-bit temperature reading to 0.25oC resolution.
T he AD7415’s 3.3V supply voltage, low supply current,
serial interface and small package size, make it ideal for a
variety of applications, including personal computers,
cellular phones, office equipment and domestic appli-
ances.
SMBus is a trademark and I2C is a registered trademark of Philips Corporation
REV. PrB 05/’00
Inform ation furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assum ed by Analog Devices for its
use, nor for any infringem ents of patents or other rights of third parties
which m ay result from its use. No license is granted by im plication or
otherwise under any patent or patent rights of Analog Devices.
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Analog Devices, Inc., 2000