ATS45CS3 ETC2 [List of Unclassifed Manufacturers], ATS45CS3 Datasheet - Page 3

• Manufacturer Part Number: ATS45CS3
• Description: LOW-VOLTAGE ULTRA-LOW-POWER TEMPERATURE SENSOR WITH HIGH OUTPUT DRIVE
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

© Andigilog, Inc. 2006
Mounting
The aTS45C can be easily mounted by gluing or
cementing it to a surface. In this case, its temperature
will be within about 0.04°C of the temperature of the
surface it is attached to if the ambient air temperature
is almost the same as the surface temperature. If the
air temperature is much higher or lower than the
surface temperature, the actual temperature of the
aTS45C die will be at an intermediate temperature
between the
temperature.
To ensure good thermal conductivity, the backside of
the aTS45C die is directly attached to the GND pin.
The lands and traces to the aTS45C will, of course, be
part of the printed circuit board, which is the object
whose
1000
1000
V
V
(mV)
(mV)
750
750
100
100
500
500
250
250
OUT
OUT
10
10
(2.7V to 5.5V)
(2.7V to 5.5V)
Basic Range Temperature Sensor
Basic Range Temperature Sensor
surface temperature and the
aTS45C
aTS45C
25
25
+V
+V
Single Supply
Single Supply
DD
DD
+10.0 ºC to +100 ºC
+10.0 ºC to +100 ºC
Temperature (ºC)
Temperature (ºC)
50
50
V
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
= +1000 mV at +100 ºC
= +1000 mV at +100 ºC
= +250mV at +25 ºC
= +250mV at +25 ºC
= +100mV at +10.0 ºC
= +100mV at +10.0 ºC
Output Voltage vs Temperature
Output Voltage vs Temperature
V
V
OUT
OUT
Figure 1. aTS45C Output Voltage vs Temperature
75
75
100
100
Temp (ºC) = (V
Temp (ºC) = (V
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air
- 3 -
V
V
(mV)
(mV)
1000
1000
-200
-200
OUT
OUT
750
750
500
500
250
250
temperature is being measured. These printed circuit
board lands and traces will not cause the aTS45C’s
temperature to deviate from the desired temperature.
Alternatively, the aTS45C can be mounted inside a
sealed-end metal tube, and can then be dipped into a
bath or screwed into a threaded hole in a tank. As
with any IC, the aTS45C and accompanying wiring
and circuits must be kept insulated and dry to avoid
leakage and corrosion. This is especially true if the
circuit may operate at cold temperatures where
condensation can occur. Printed-circuit coatings and
varnishes such as Humiseal and epoxy paint or dips
can be used to ensure that moisture cannot corrode
the aTS45C or its connections.
0
0
-20
-20
OUT
OUT
) / 10mV/ºC
) / 10mV/ºC
0
0
(2.7V to 5.5V)
(2.7V to 5.5V)
With Negative Bias
With Negative Bias
aTS45C
aTS45C
Full Range Temperature Sensor
Full Range Temperature Sensor
+V
+V
DD
DD
Negative Supply (V-)
Negative Supply (V-)
25
25
-20 ºC to +100 ºC
-20 ºC to +100 ºC
Temperature (ºC)
Temperature (ºC)
V
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
= +1000 mV at +100 ºC
= +1000 mV at +100 ºC
= +250mV at +25 ºC
= +250mV at +25 ºC
= -200mV at -20 ºC
= -200mV at -20 ºC
50
50
R
R
EXTERNAL
EXTERNAL
V
V
OUT
OUT
75
75
= V- / 10uA
= V- / 10uA
April 2006 - 70A03207
100
100
aTS45C