New Release Specification
© Andigilog, Inc. 2003
www.andigilog.com
70A03202-003
LOW-VOLTAGE SOT-23 TEMPERATURE SENSOR
aTS50
PRODUCT SPECIFICATION
General Description
The aTS50 is a high-precision CMOS temperature
sensor that provides a cost-effective solution for
applications
requiring
high-accuracy
low-power
temperature monitoring. The aTS50 output voltage
ramp is extremely linear and has a slope of 10mV/°C.
With a supply voltage of 2.7V to 6V, the aTS50 is
accurate to ±1°C over a temperature range of
−40°C to
125°C and has a typical room temperature accuracy of
±0.5°C. Reducing the supply voltage to 2.7V does not
change the negative and positive temperature
extremes.
As well, the aTS50 does not require
external calibration. Calibration of each device is
performed at the factory.
Features
•
Precision Calibrated to ±1°C at 25°C
•
Temperature Range: -40°C to 125°C
•
Extremely Linear Output Ramp: 10mV/°C
•
Output Ramp is Calibrated to Degrees Celsius
•
Low Operating Current:
≤ 130μA
•
Low Self Heating: 0.2°C Typical in Still Air
•
Operating Voltage Range: +2.7V to +6V
•
Uses a Single Positive Supply
•
Non-linearity:
≤ 0.8°C
Applications
•
Mobile Phones
•
Mobile Communications Terminals
•
Computers
•
Battery Management
•
FAX Machines/Printers/Copiers
•
Portable Medical Instruments
•
HVAC
•
Power Supply Modules
•
Disk Drives
•
Automotive Control Circuits
Pin Configuration
2
1
3
SOT- 23 3-lead
GND
V
OUT
V
DD
2
1
3
SOT- 23 3-lead
GND
V
OUT
V
DD
aTS50
2
1
3
SOT- 23 3-lead
GND
V
OUT
V
DD
2
1
3
SOT- 23 3-lead
GND
V
OUT
V
DD
aTS50
actual part marking below
Accuracy vs Temperature
-50
0
50
100
Temperature (°C)
VDD=+5V
lower spec limit
-4
-3
-2
-1
0
1
2
3
upper spec limit
-40
25
125
4
-50
0
50
100
Temperature (°C)
VDD=+5V
lower spec limit
-4
-3
-2
-1
0
1
2
3
upper spec limit
-40
25
125
4
Ordering Information
Part Number
Package
Temperature Range
Part Marking
How Supplied
aTS50S3
3-Pin SOT-23
-40˚C to +125˚C
AAyw
3000 units on T&R
y – year, w - week
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