Fully Released Specification
© Andigilog, Inc. 2006
www.andigilog.com
April 2006 - 70A03207
LOW-VOLTAGE ULTRA-LOW-POWER
TEMPERATURE SENSOR WITH HIGH OUTPUT DRIVE
aTS45C
PRODUCT SPECIFICATION
General Description
The aTS45C is a silicon integrated circuit temperature
sensor. The aTS45C maintains an accuracy of ±4°C
over a temperature range of
−20°C to 100°C. At 25°C
(room temperature) the accuracy is calibrated to
typically better than ±2°C (VOUT = 250mV). This
calibration is done during probe and guaranteed on
each device. The aTS45C also maintains one of the
lowest power consumption requirement in the industry
and therefore reduces any inaccuracies due to self-
heating.
Features
•
Calibrated 25°C performance ±3°C
•
Low Operating Current:
≤ 25µA
•
Temperature Range: -20°C to 100°C
•
Extremely Linear Output Ramp: 10mV/°C
•
Output Ramp is Calibrated to Degrees Celsius
•
Low Self Heating: 0.04°C Typical in Still Air
•
Operating Voltage Range: +2.7V to +5.5V
•
Optional Single Positive Supply Operation at
Reduced Range: 10°C to 100°C
•
Non-linearity:
≤ 0.8°C
•
3-pin Pb-Free SOT-23 Package
Applications
•
Mobile Communications Terminals
•
Computers and Peripherals
•
Battery Management
•
FAX Machines/Printers/Copiers
•
Portable Medical Instruments
•
HVAC
•
Power Supply Modules
•
Disk Drives
Pin Configuration
actual part marking below
Accuracy vs. Temperature
Ordering Information
Part Number
Package
Temperature Range
Part Marking
How Supplied
aTS45CS3
3-Pin SOT-23
-20˚C to +100˚C
AGyw
3000 units on T&R
y – year, w - week
2
1
3
SOT - 23 3-lead
GND
V
OUT
V
DD
2
1
3
SOT - 23 3-lead
GND
V
OUT
V
DD
aTS45C
2
1
3
SOT - 23 3-lead
GND
V
OUT
V
DD
2
1
3
SOT - 23 3-lead
GND
V
OUT
V
DD
aTS45C
SOT-23 3-Pin Package
10
Temperature (°C)
-3
-2
-1
0
1
2
3
upper spec limits
0
80
100
lower spec limits
-
-
-
25
60
40
20
-20
4
-4
Temperature (°C)
-3
-2
-1
0
1
2
3
upper spec limits
0
80
100
lower spec limits
-
-
-
25
60
40
20
-20
4
-4
Negative Bias Required
below 10°C
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