New Release Specification
© Andigilog, Inc. 2003
www.andigilog.com
70A03201-004
LOW-VOLTAGE ULTRA-LOW-POWER
TEMPERATURE SENSOR
aTS20
PRODUCT SPECIFICATION
General Description
The aTS20 is a precision CMOS temperature sensor
that provides a cost-effective solution for space-
constrained applications. The output voltage ramp of
the aTS20 has a negative slope of -11.77mV/°C. With
a supply voltage of 2.4V to 6V, the aTS20 is accurate
to
± 2°C at 25°C, and to ± 3°C over the range of −40°C
to 125°C. Reducing the supply voltage to 2.4V does
not change the negative and positive temperature
extremes.
As well, the aTS20 does not require
external calibration.
Calibration of each device is
performed at the factory.
Features
•
Extremely Low Power
•
Precision Calibrated to ±2°C at 25°C
•
Ultra Low Operating Current :
≤ 12μA
•
Temperature Range: -40°C to 125°C
•
Linear Output Ramp: -11.77mV/°C
•
Output Ramp is Calibrated to Degrees Celsius
•
Low Self Heating: 0.01°C typical in still air
•
Uses a Single Positive Supply
•
Operating Voltage Range: +2.4V to +6V
•
Non-linearity:
≤ 0.8°C
Applications
•
Cellular Telephones
•
Computers
•
Battery Management
•
FAX Machines/Printers/Copiers
•
Portable Medical Instruments
•
HVAC
•
Power Supply Modules
•
Disk Drives
•
Appliances
Pin Configuration
5
3
4
1
2
SC70 5 -lead
aTS20
V
DD
GND
NC
GND
V
OUT
5
3
4
1
2
SC70 5 -lead
V
DD
GND
NC
GND
V
OUT
5
3
4
1
2
SC70 5 -lead
aTS20
V
DD
GND
NC
GND
V
OUT
5
3
4
1
2
SC70 5 -lead
V
DD
GND
NC
GND
V
OUT
actual part marking below
Accuracy vs Temperature
-3
-2
-1
0
1
2
3
upper spec limit
0
80
100
lower spec limit
-
-
-
25
120
125
60
40
20
-20
-40
-3
-2
-1
0
1
2
3
upper spec limit
0
80
100
lower spec limit
-
-
-
25
120
125
60
40
20
-20
-40
Ordering Information
Part Number
Package
Temperature Range
Part Marking
How Supplied
aTS20F5
5-Pin SC-70
-40˚C to +125˚C
Ayw
3000 units on T&R
y – year, w - week
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