aTS50
L
OW
-V
OLTAGE
SOT-23 T
EMPERATURE
S
ENSOR
New Release 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.
P
RODUCT
S
PECIFICATION
Pin Configuration
SOT- 23 3-lead
V
DD
1
aTS50
V
OUT
2
3
GND
actual part marking below
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
Accuracy (°C)
4
3
2
1
0
-1
-2
-3
-4
-50
-40
Accuracy vs Temperature
V
DD
=+5V
upper spec limit
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
lower spec limit
0
25
50
100
125
Temperature (°C)
Ordering Information
Part Number
aTS50S3
y – year, w - week
Package
3-Pin SOT-23
Temperature Range
-40˚C to +125˚C
Part Marking
AAyw
How Supplied
3000 units on T&R
© Andigilog, Inc. 2003
www.andigilog.com
70A03202-003