New Release Specification
© Andigilog, Inc. 2003
www.andigilog.com
70A03203-003
LOW-VOLTAGE SOT-23
TEMPERATURE SENSOR WITH HIGH OUTPUT DRIVE
aTS51
PRODUCT SPECIFICATION
General Description
The aTS51 is a high-precision CMOS temperature
sensor that provides a cost-effective solution for
applications
requiring
high-accuracy
low-power
temperature monitoring. The aTS51 is ideally suited for
applications requiring high drive current. The aTS51
output voltage ramp is extremely linear and has a
slope of 10mV/°C. With a supply voltage of 2.7V to
6V, the aTS51 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 aTS51
does not require external calibration. Calibration of
each device is performed at the factory.
Features
•
Precision Calibrated to ±1°C at 25°C
•
Low Output Impedance for 1mA Load
•
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
aTS51
2
1
3
SOT- 23 3-lead
GND
V
OUT
V
DD
2
1
3
SOT- 23 3-lead
GND
V
OUT
V
DD
aTS51
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
aTS51S3
3-Pin SOT-23
-40˚C to +125˚C
AByw
3000 units on T&R
y – year, w - week
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